Agenda packet — Livingston City Council, April 1, 2025 (part 2 of 3)

1,GENERAL
SECTION 07 55 00

MODIFIED KEE MEMBRANE ROOFING
1,1. SECTION INCLUDES
A. Includes all labor, materials, and equipment tb install a Cold Applied 2-Ply Thermoplastic Hybrid Roof System roof (KEE-Stone FB 60) over the properly prepared substrate.

B. Includes removal and disposal of existing roofing system(s), insulation board, flashings, sheet metal items, copings, etc. for a complete prepared roof surface to receive the new roofing system.

C. Includes a new cold applied 2-ply hybrid roofing system with all accessories as needed for a complete warrantable roofing system.

D, See section 011100 Summary of Work for a detailed scope of work.

1.2. RELATED SECTIONS
A. Section 01 11 00 - Summary of Work
B. Section 06 10 00 - Rough Carpentry
C. Section 07 62 00 - Sheet Metal Flashing and Trim

1.3. REFERENCES
A. ASTM C1289 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board.

B. ASTM D 41 - Standard Specification for Asphalt Primer Used in Roofing, Dampproofing, and Waterproofing.

C. ASTM D 312 - Standard Specification for Asphalt used in Roofing.

D. ASTM D 1079 Standard Terminology Relating to Roofing, Waterproofing and Bituminous Materials.

E. ASTM D 1863 Standard Specification for Mineral Aggregate Used as a Protective Coating for Roofing.

F. ASTM D 2822 Standard Specification for Asphalt Roof Cement.

G. ASTM D 5147 Standard Test Method for Sampling and Testing Modified Bituminous Sheet Materials.

H. ASTM D 6754 Standard Specification for Ketone Ethylene Ester (KEE) Sheet Roofing
I. ASTM D 6162 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using a Combination of Polyester and Glass Fiber Reinforcements.
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J. ASTM D 6163 Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Glass Fiber Reinforcements.

K. ASTM D 6164 - Standard Specification for Styrene Butadiene Styrene (SBS) Modified Bituminous Sheet Materials Using Polyester Reinforcements.

L. ASTM E 108 - Standard Test Methods for Fire Test of Roof Coverings M. Factory Mutual Research (FM): Roof Assembly Classifications.

N. National Roofing Contractors Association (NRCA): Roofing and Waterproofing Manual.

O. Sheet Metal and Air Conditioning Contractors National Association, Inc. (SMACNA) - Architectural Sheet Metal Manual.

P. Underwriters Laboratories, Inc. (UL): Fire Hazard Classifications.

Q. Warnock Hersey (WH): Fire Hazard Classifications.

R. ANSJ-SPRI ES-1 Wind Design Standard for Edge Systems used with Low Slope Roofing Systems.

S. ASCE 7-16, Minimum Design Loads for Buildings and Other Structures T. UL - Fire Resistance Directory.

U. FM Approvals - Roof Coverings and/or RoofNav assembly database.

V. California Title 24 Energy Efficient Standards.

W. California Code of Regulations, Title 24, Part 2, California Building Code (CBC), International Building Code.

1.4. DESIGN / PERFORMANCE REQUIREMENTS
A. Perform work in accordance with all federal, state and local codes.

B. Exterior Fire Test Exposure: Roof system shall achieve a UL, FM or WH Class rating for roof slopes indicated on the Drawings as follows:

1. Factory Mutual Class A Rating.

2. Underwriters Laboratory Class A Rating.

3. Warnock Hersey Class A Rating.
c. Design Requirements:

1. Uniform Wind Uplift Load Capacity
a. Installed roof system shall withstand negative (uplift) design wind loading pressures complying with the following criteria.

1. Design Code: ASCE 7, Method 2 for Components and Cladding.

2. Importance Category:
a. III

3. Importance Factor of:
a. 1.0

4. Wind Speed: 100 mph

5. Exposure Category:
a. C
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6. Design Roof Height: 50 feet.

7. Minimum Building Width: 30 feet.

8. Roof Pitch: 0.5 :12.

9. Roof Area Design Uplift Pressure:
a. Zone 1 - Field of roof 14. 3 psf
b. Zone 2 - Eaves, ridges, hips and rakes 24 psf
c. Zone 3 - Corners 36 psf

2. Snow Load: N/A psf.

3. Live Load: 20 psf, or not to exceed original building design.

4. Dead Load:
a. Installation of new roofing materials shall not exceed the dead load capacity of the existing roof structure.

D. Energy Star: Roof System shall comply with the initial and aged reflectivity required by the U.S. Federal Government's Energy Star program.

E. LEED: Roof system shall meet the reflectivity and emissivity criteria to qualify for one point under the LEED credit category, Credit 7 .2, Landscape & Exterior Design to Reduce Heat Island - Roof.

F. Roof System membranes containing recycled or bio-based materials shall be third party certified through UL Environment.

G. Roof system shall have been tested in compliance with the following codes and test requirements:

1. Miami-Dade County:
a. Self-Adhered Membrane Systems Over:

1. Wood Decks N.O.A.
b. Torch and Mop Membrane Systems Over

1. Wood Decks N.O.A.
c. Roofing Underlayments

1. Garland Underlayments N.O.A.
d. Roofing Cements and Coatings

1. G<Jrland Coatings and Mastics N.O.A.

2. Cool Roof Rating Council:
a. CRRC Directory: CRRC 0700-0034

3. International Code Council Evaluation Service (ICC-ES):
a. Membrane Systems

1. ESR-3460

4. FM Approvals:
a. RoofNav Website

1.5. SUBMITTALS
A. Submit under provisions of Section 01300.

B. Product Data: Manufacturer's data sheets on each product to be used, including:

1. Preparation instructions and recommendations.

2. Storage and handling requirements and recommendations.

3. Installation instructions.

C. Shop Drawings: Submit shop drawings including installation details of roofing, flashing, fastening, insulation and vapor barrier, including notation of roof slopes, tapered insulation design if applicable, and fastening patterns of insulation and base modified bitumen membrane, prior to job start.
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D. Design Pressure Calculations: Submit design pressure calculations for the roof area in accordance with ASCE 7 and local Building Code requirements. Include a roof system attachment analysis report, certifying the system's compliance with applicable wind load requirements before Work begins. Report shall be reviewed by a Professional Engineer registered in the State of the Project who has provided roof system attachment analysis for not less than 5 consecutive years.

E. LEED Submittals: Provide documentation of how the requirements of Credit will be met:

1. List of proposed materials with recycled content. Indicate post-consumer recycled content and pre-consumer recycled content for each product having recycled content.

2. Product data and certification letter indicating percentages by weight of post-consumer and pre-consumer recycled content for products having recycled content.

3. Product reflectivity and emissivity criteria to qualify for one point under the LEED credit category, Credit 7.2, Landscape & Exterior Design to Reduce Heat Island - Roof.

F. Recycled or Bio-Based Materials: Provide third party certification through UL Environment of roof System membranes containing recycled or bio based materials
G. Verification Samples: For each modified bituminous membrane ply product specified, two samples, minimum size 6 inches (150 mm) square, representing actual product, color, and patterns.

H. Provide written certification from the roofing system manufacturer certifying the applicator is currently authorized to install the specified roof system and ability to provide the specified warranty.

I. Sample Warranty: Provide an unexecuted copy of the warranty specified for this project clearly stating the terms required of the owner, contractor, and manufacturer.

J. Manufacturer's Certificates: Provide to certify products meet or exceed specified requirements.

K. Test Reports: Submit test reports, prepared by an independent testing agency, for all modified bituminous sheet roofing, indicating compliance with ASTM D5147.

L. Manufacturer's Fire Compliance Certificate: Certify that the roof system furnished is approved by Factory Mutual (FM), Underwriters Laboratories (UL), Warnock Hersey (WH) or approved third party testing facility in accordance with ASTM El08, Class A for external fire and meets local or nationally recognized building codes.

M. Closeout Submittals: Provide manufacturer's maintenance instructions that include recommendations for periodic inspection and maintenance of all completed roofing work. Provide product warranty executed by the manufacturer. Assist Owner in preparation and submittal of roof installation acceptance certification as may be necessary in connection with fire and extended coverage insurance on roofing and associated work. 07 55 00- MODIFIED MEMBRANE ROOFING

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N. Any material submitted as equal to or better than the specified material must be accompanied by a report signed and sealed by a professional engineer licensed in the state in which the installation is to take place. This report shall show that the submitted equal meets the Design and Performance criteria in this specification. Substitution requests submitted without licensed engineer stamp will be rejected for non-conformance.

1.6, QUALITY ASSURANCE
A. Perform Work in accordance with NRCA Roofing and Waterproofing Manual and all manufacturer's instructions.

B. Manufacturer Qualifications: Company specializing in manufacturing products specified with documented ISO 9001 certification and minimum of twelve years of documented experience and must not have been in Chapter 11 bankruptcy during the last five years.

C. Installer Qualifications: Company specializing in performing Work of this section with minimum five years documented experience and a certified Pre-Approved Garland Contractor.

D. Installer's Field Supervision: Maintain a full-time Supervisor/Foreman on job site during all phases of roofing work while roofing work is in progress.

E. Product Certification: Provide manufacturer's certification that materials are manufactured in the United States and conform to requirements specified herein, are chemically and physically compatible with each other, and are suitable for inclusion within the total roof system specified herein.

F. Source Limitations: Obtain all components of roof system from a single manufacturer. Secondary products that are required shall be recommended and approved in writing by the roofing system Manufacturer. Upon request of the Architect or Owner, submit Manufacturer's written approval of secondary components in list form, signed by an authorized agent of the Manufacturer.

1.7. PRE-INSTALLATION MEETINGS
A. Coordinate with installation of associated flashings and counterflashings installed by other sections.

B. Preinstallation Meeting:

1. Convene two weeks before starting work of this section. Meet at Project site with Installer, installer of each component of associated work, installers of deck or substrate construction to receive roofing work, installers of rooftop units and other work in the around roofing that must precede or follow roofing work (including mechanical work if any), Architect/Owner, roofing system manufacturer's representative, and other representatives directly concerned with performance of the Work, including (where applicable) Owner's insurers, test agencies, and governing authorities. Objectives to include:

2. Review preparation and installation procedures and coordinating and scheduling required with related work.
a. Review methods and procedures related to roofing work. b. Review structural loading limitations of new deck.
c. Review roofing systems requirements ( drawings, specifications, and other contract documents).
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d. Review required submittals, both completed and yet to be completed. e. Review and finalize construction schedule related to roofing work and verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.
f. Review required inspection, testing, certifying, and material usage accounting procedures.
g. Review weather and forecasted weather conditions and procedures for coping with unfavorable conditions, including provision of temporary roofing over occupied spaces.
h. Record discussion of conference, including decisions and agreements (or disagreements) reached, and furnish copy of record to each party attending. If substantial disagreements exist at conclusion of conference, determine how disagreements will be resolved and set date for reconvening conference.
i. Review notification procedures for weather or non-working days.

C. Sequence installation of roofing with related units of work specified in other sections to ensure that roof assemblies, including roof accessories, flashing, trim, and joint sealers, are protected against damage from effects of weather, corrosion, and adjacent construction activity.

B. Inspect and make notes of job conditions prior to installation:

1. Record minutes of the conference and provide copies to all parties present.

2. Identify all outstanding issues in writing designating the responsible party for follow-up action and the timetable for completion.

3. Installation of roofing system shall not begin until all outstanding issues are resolved to the satisfaction of the Owner and Architect.

1.8. DELIVERY, STORAGE, AND HANDLING
A. Deliver and store products in manufacturer's unopened packaging with labels intact until ready for installation.

B. Store all roofing materials in a dry place, on pallets or raised platforms, out of direct exposure to the elements until time of application. Store materials at least 4 inches above ground level and covered with "breathable" tarpaulins.

C. Stored in accordance with the instructions of the manufacturer prior to their application or installation. Store roll goods on end on a clean flat surface except store KEE-Stone FB 60 rolls flat on a clean flat surface. No wet or damaged materials will be used in the application.

D. Store at room temperature wherever possible, until immediately prior to installing the roll. During winter, store materials in a heated location with a 50 degree F (10 degree CJ minimum temperature, removed only as needed for immediate use. Keep materials away from open flame or welding sparks.

E. Avoid stockpiling of materials on roofs without first obtaining acceptance from the Architect/Engineer.

F. Adhesive storage shall be between the range of above 50 degree F (10 degree CJ and below 80 degree F (27 degree CJ. Area of storage shall be constructed for flammable storage.

1.9. COORDINATION
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A. Coordinate Work with installing associated metal flashings as work of this section proceeds.

1.10.PROJECT CONDITIONS
A. Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's absolute limits.

B. Do not apply roofing membrane to damp or frozen deck surface or when 40% chance of precipitation is expected or occurring.

C. Proceed with roofing work only when existing and forecasted weather conditions will permit unit of work to be installed in accordance with manufacturer's recommendations and warranty requirements.

D. Do not expose materials vulnerable to water or sun damage in quantities greater than can be weatherproofed the same day.

1.11.WARRANTY
A. Special Warranty: Manufacturer's No Dollar Limit Warranty, Manufacturer agrees to repair or replace components of roofing system that fail in materials or workmanship within specified warranty period.

1. Special warranty includes membrane roofing, base flashing, roof insulation, fasteners, cover boards, substrate boards, vapor retarders (where included) , and walkway product.

2. Warranty Period: 30 years from date of Substantial Completion.

3. Must cover calculated wind speed.

B. Special Project Warranty: Submit roofing Installer's warranty, on warranty form at end of this Section, signed by Installer, covering the Work of this Section, including all components of roofing system such as membrane roofing, base flashing, roof insulation, fasteners, cover boards, substrate boards, vapor retarders (where included) , and walkway products, for the following warranty period:

1. Correct defective Work within a five (5) year period after Date of Substantial Completion.

2.PRODUCTS

2.1. MANUFACTURERS
A. Acceptable Manufacturer: The Garland Company, Inc.; 3800 E. 91st St., Cleveland, OH 44105. Local Representative: Rich Jones Phone: (559) 647-1196. [email protected] Web Site: www.garlandco.com.

B. Requests for substitutions will not be considered for this project on all owner supplied materials.

C. The Products specified are intended and the Standard of Quality for the products required for this project. If other products are proposed the bidder must disclose in the bid the manufacturer and the products that they intend to use on the Project. If no manufacturer and products are listed, the bid may be accepted only with the use of products specified.

1. Bidder will not be allowed to change materials after the bid opening date. 07 55 00- MODIFIED MEMBRANE ROOFING

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2. If alternate products are included in the bid, the products must be equal to or exceed the products specified. Supporting technical data shall be submitted to the Architect/ Owner for approval prior to acceptance.

3. In making a request for substitution, the Bidder/Roofing Contractor represents that it has:
a. Personally investigated the proposed product or method, and determined that it is equal or superior in all respects to that specified.
b. Will provide the same guarantee for substitution as for the product and method specified.
c. Will coordinate installation of accepted substitution in work, making such changes as may be required for work to be completed in all respects.
d. Will waive all claims for additional cost related to substitution, which consequently become apparent.
e. Cost data is complete and includes all related cost under his/her contract or other contracts, which may be affected by the substitution.
f. Will reimburse the Owner for all redesign cost by the Architect for accommodation of the substitution.

4. Architect/ Owner reserves the right to be the final authority on the acceptance or rejection of any or all bids, proposed alternate roofing systems or materials that has met ALL specified requirement criteria.

5. Failure to submit substitution package, or any portion thereof requested, will result in immediate disqualification and consideration for that particular contractors request for manufacturer substitution.
2,2. COLD APPLIED 2-PLY ROOF SYSTEM
A. Rosin Sheet: One ply of mechanically attached to the prepared substrate.

1. Red Rosin Paper:

B. Insulation: As specified in Section 07220 and shown on Drawings.

1. Insulation assembly; taper or constant thickness as indicated on Drawings.

Where tapered insulation is indicated, provide slopes as indicated, and as required to ensure positive drainage and minimum slope at valleys of 1/4 inch in 12 inches.

C. Insulation: As specified in Section 07220 and shown on Drawings;

1. One layer of six side primed ½" woodfiber insulation board D. Base (Ply) Sheet: One ply bonded to the prepared substrate with Interply Adhesive (1):

1. Flexbase 80 Base Sheet (80 mil):

E. Interply Adhesive (1):

1. Green Lock Plus Membrane Adhesive:

F. Thermoplastic Sheet: One ply bonded to the prepared substrate with Interply Adhesive (2):

1. KEE Stone FB 60:

G. Interply Adhesive (2):

1. KEE-Lock Spatter Spray:
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H. Base & Wall Flashing (Ply) Sheet: One ply bonded to the prepared substrate with Interply Adhesive (3).

1. Flexbase 80 Base Sheet (80 mil)
I. Flashing Membrane Adhesive: Adhesive (3)

1. Green Lock Plus Flashing Adhesive
J. Flashing Membrane Sheet: One ply bonded to the prepared substrate with Adhesive (4):

1. KEE-Stone NF 60:

K. Flashing Membrane Adhesive: Adhesive (4)

1. KEE-Lock WB Flashing Adhesive
2,3, ACCESSORIES:

A. Roof Insulation Thermal Value (R), nominal as indicated on drawings and as follows: Provide insulation of thickness required to develop drainage patterns as indicated, as required to eliminate ponding and to meet thermal requirements noted on drawings.

B. Roof Insulation Field Layer: Provide and install one layer of½" six side primed Blue Ridge Structodek High Density Fiberboard Roof Insulation. ASTM C 208, Type II.

C. Vapor Retarder: Red Rosin Paper; Install layer rosin sheet shingled uniformly to achieve one ply over the entire prepared substrate. Shingle in direction of slope of roof to shed water on each area of roof.

1. Red Rosin Paper by WR Meadows
a. Weight - 12 lb./roll
b. Size - 500 square feet p/roll
c. 36" wide by 167' long
D. Nails and Fasteners: Non-ferrous metal or galvanized steel, except that hard copper nails shall be used with copper; aluminum or stainless steel nails shall be used with aluminum; and stainless steel nails shall be used with stainless steel, Fasteners shall be self-clinching type of penetrating type as recommended by the deck manufacturer. Fasten nails and fasteners flush-driven through flat metal discs not less than 1 inch (25 mm) diameter. Omit metal discs when one-piece composite nails or fasteners with heads not less than 1 inch (25 mm) diameter are used.

E. Walkway Pads - As recommended and furnished by the membrane manufacturer adhered to control foot traffic on roof top surface and provide a durable system compliant non-slip walkway.

1. SolarBright Walkway Roll by WPG, A Garland Company.
a. 30" x 60' walk way roll
b. Install walk way pads in a path from all roof access points to and around all HVAC and serviceable mechanical equipment, to and around roof hatches, and as designated by the owner.
c. Walkway Pads shall not be installed over field seams or flashing seams of the membrane.
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F. Urethane Sealant Hybrid - Tuff-Stuff MS: One part, non-sag sealant as approved and furnished by the membrane manufacturer for moving joints.

1. Tensile Strength, ASTM D 412: 250 psi

2. Elongation, ASTM D 412: 450%

3. Hardness, Shore A ASTM C 920: 35

4. Adhesion-in-Peel, ASTM C 92: 30 pli
G. Sealant - Green-Lock Structural Adhesive: Single component, 100% solids structural adhesive as furnished and recommended by the membrane manufacturer.

1. Elongation, ASTM D 412: 300%

2. Hardness, Shore A, ASTM C 920: 50

3. Shear Strength, ASTM D 1002: 300 psi
H. Butyl Tape: 100% solids, asbestos free and compressive tape designed to seal as recommended and furnished by the membrane manufacturer.

I. Glass Fiber Cant - Glass Cant: Continuous triangular cross Section made of inorganic fibrous glass used as a cant strip as recommended and furnished by the membrane manufacturer.

2.4. EDGE TREATMENT AND ROOF PENETRATION FLASHINGS
A. Pre-Manufactured Edge Metal Finishes:

1. Exposed and unexposed surfaces for mill finish flashing, fascia, and coping cap, as shipped from the mill

2. Exposed surfaces for coated panels:
a. Steel Finishes: fluorocarbon finish. Epoxy primer baked both sides, .2-.25 mils thickness as approved by finish coat manufacturer.

Weathering finish as referred by National Coil Coaters Association (NCCA). Provided with the following properties.

1. Pencil Hardness: ASTM D3363, HB-H / NCCA II-2.

2. Bend: ASTM D-4145, O-T / NCCA II-19

3. Cross-Hatch Adhesion: ASTM D3359, no loss of adhesion

4. Gloss (60 deg. angle): ASTM D523, 25+/-5%

5. Reverse Bend: ASTM D2794, no cracking or loss of adhesion

6. Nominal Thickness: ASTM D1005
a. Primer: 0.2 mils
b. Topcoat, 0. 7 mils min
c. Clear Coat (optional, only used with 22 ga. steel) 0.3 mils

7. Color: Provide as specified. (Subject to minimum quantities) B. Flashing Boot - SolarBright Flashing Boot: KEE pipe boot for sealing single or multiple pipe penetrations adhered in approved adhesives as recommended and furnished by the membrane manufacturer.

C. Vents and Breathers: Heavy gauge aluminum and fully insulated vent that allows moisture and air to escape but not enter the roof system as recommended and furnished by the membrane manufacturer.

D. Pitch pans, Rain Collar 24 gauge stainless or 20oz (567gram) copper. All joints should be welded/soldered watertight. See details for design.

E. Drain Flashings should be 4Ib (1.8kg) sheet lead formed and rolled. 07 55 00- MODIFIED MEMBRANE ROOFING

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F. Plumbing stacks are too have SolarBright Flashing Boots. Caulking and banding will be required with the specified sealant.

G. Liquid Flashing - Tuff-Flash: An asphaltic-polyurethane, low odor, liquid flashing material designed for specialized details unable to be waterproofed with typical modified membrane flashings.

1. Tensile Strength, ASTM D 412: 400 psi

2. Elongation, ASTM D 412: 300%

3. Density @77 deg. F 8.5 lb/gal typical
H. Fabricated Flashings: Fabricated flashings and trim are specified in Section 07620.

1. Fabricated flashings and trim shall conform to the detail requirements of SMACNA "Architectural Sheet Metal Manual" and/or the CDA Copper Development Association "Copper in Architecture - Handbook" as applicable.

I. Manufactured Roof Specialties: Shop fabricated copings, fascia, gravel stops, control joints, expansion joints, joint covers and related flashings and trim are specified in Section 07,

1. Manufactured roof specialties shall conform to the detail requirements of SMACNA "Architectural Sheet Metal Manual" and/or the NRCA "Roofing and Waterproofing Manual" as applicable.
3,EXECUTION

3.1. EXAMINATION
A. Do not begin installation until substrates have been properly prepared.

B. I,nspect and approve the deck condition, slopes and fastener backing if applicable, parapet walls, expansion joints, roof drains, stack vents, vent outlets, nailers and surfaces and elements.

C. Verify that work penetrating the roof deck, or which may otherwise affect the roofing, has been properly completed.

D. If substrate preparation and other conditions are the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.

3.2. PREPARATION
A. General: Clean surfaces thoroughly prior to installation.

1. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.

2. Fill substrate surface voids that are greater than 1/4 inch wide with an acceptable fill material.

3. Roof surface to receive roofing system shall be smooth, clean, free from loose gravel, dirt and debris, dry and structurally sound.

4. Wherever necessary, all surfaces to receive roofing materials shall be power broom and vacuumed to remove debris and loose matter prior to starting work.

5. Do not apply roofing during inclement weather. Do not apply roofing membrane to damp, frozen, dirty, or dusty surfaces.
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6. Fasteners and plates for fastening components mechanically to the substrate shall provide a minimum pull-out capacity of 300 lbs. (136 k) per fastener, Base or ply sheets attached with cap nails require a minimum pullout capacity of 40 lb. per nail.

7. Prime decks where required, in accordance with requirements and recommendations of the primer and deck manufacturer.

B. Wood Deck:

1. Dimensional wood deck shall be minimum 1 inch (25 mm) thick, knotholes and cracks larger than 1/4 inch shall be covered with sheet metal. All boards shall be appropriately nailed and have adequate end bearing to the centers of beams/rafters. Lumber shall be kiln dried.

2. Plywood shall be a minimum 15/32 inch (11.9 mm) thick and conform to the standards and installation requirements of the American Plywood Association (APA).

3. If no roof insulation is specified, provide a suitable dry sheathing paper, followed by an approved base sheet nailed appropriately for the specified roof system, with 1 inch (25 mm) diameter caps and annular nails unless otherwise required by the applicable Code or Approval agency.

4. Insulation is to be mechanically attached in accordance with the insulation manufacturer's recommendations unless otherwise required by the applicable Code.

5. In all retrofit roof applications, it is required that deck be inspected for defects. Any defects are to be corrected per the deck manufacturer's recommendations and standards of the APA/Engineered Wood Association prior to new roof application.

6. Light metal wall ties or other structural metal exposed on top of the wood deck shall be covered with one ply of a heavy roofing sheet, such as HPR Glasbase Base Sheet, extending 2 inches to 6 inches (51 mm to 152 mm) beyond the metal in all directions. Nail in place before applying the base ply.

3.3. INSTALLATION - GENERAL
A. Install modified bitumen membranes and flashings in accordance with manufacturer's instructions and with the recommendations provided by the National Roofing Contractors Association's Roofing & Waterproofing Manual, the Asphalt Roofing Manufacturers Association, and applicable codes, B. General: Avoid installation of modified bitumen membranes at temperatures lower than 40-45 degrees F. When work at such temperatures unavoidable use the following precautions:

1. Take extra care during cold weather installation and when ambient temperatures are affected by wind or humidity, to ensure adequate bonding is achieved between the surfaces to be joined. Use extra care at material seam welds and where adhesion of the applied product to the appropriately prepared substrate as the substrate can be affected by such temperature constraints as well.

2. Unrolling of cold materials, under low ambient conditions must be avoided to prevent the likelihood of unnecessary stress cracking. Rolls must be at least 40 degrees Fat the time of application. If the membrane roll becomes stiff or difficult to install, it must be replaced with roll from a heated storage area,
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C. Commence installation of the roofing system at the lowest point of the roof (or roof area), working up the slope toward the highest point. Lap sheets shingle fashion so as to constantly shed water
D. All slopes greater than 2:12 require back-nailing to prevent slippage of the ply sheets. Use ring or spiral-shank 1 inch cap nails, or screws and plates at a rate of 1 fastener per ply (including the membrane) at each insulation stop. Place insulation stops at 16 ft o.c. for slopes less than 3: 12 and 4 feet o.c. for slopes greater than 3: 12, On non-insulated systems, nail each ply directly into the deck at the rate specified above. When slope exceeds 2: 12, install all plies parallel to the slope (strapping) to facilitate backnailing, Install 4 additional fasteners at the upper edge of the membrane when strapping the plies.

3.4. INSULATION INSTALLATION:

A. Attachment of Insulation:

1. Mechanically fasten base layers of insulation to deck in accordance with roofing manufacturer's wind uplift calculation.
a, Use fastener type and fastening pattern as required to achieve wind resistance specified.

2. Embed tapered insulation, crickets and cover board as specified in 07220 Roof Insulation and in accordance with roofing and insulation manufacturers' instructions.

3. Cover board shall be installed as specified in Section 07220 Roof Insulation.

B. Provide insulation with joints staggered minimum 6 inch from joints of proceeding layer.

C. Place tapered insulation to the required slope pattern in accordance with manufacturer's instructions.

D. Lay boards with edges in moderate contact without forcing. Cut insulation to fit neatly to perimeter blocking and around penetrations through roof.

E. At roof drains, use factory-tapered boards to slope down to roof drains over a distance of 18 inches,
G. Do not apply more insulation than can be covered with membrane in same day.

3.5. INSTALLATION OF COLD APPLIED ROOF SYSTEM
A. Base Ply: Cut base ply sheets into 18 foot lengths and allow plies to relax before installing. Install base sheet in Interply Adhesive: applied at the rate required by the manufacturer. Shingle base sheets uniformly to achieve one ply throughout over the prepared substrate. Shingle in proper direction to shed water on each large area of roofing,

1. Lap ply sheet ends 8 inches. Stagger end laps 12 inches minimum.

2. Solidly bond to the substrate and adjacent ply with specified cold adhesive at the rate of 2 to 2-1/2 gallons per 100 square feet.

3. Roll must push a puddle of adhesive in front of it with adhesive slightly visible at all side laps. Use care to eliminate air entrapment under the membrane.

4. Install subsequent rolls of modified across the roof as above with a minimum of 4 inch side laps and 8 inch staggered end laps. Lay modified membrane in the same direction as the underlayers but the laps shall not coincide with the laps of the base layers.

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bases.

6. Install base flashing ply to all perimeter and projection details.

7. Allow the one ply of base sheet to cure at least 30 minutes before installing the KEE membrane.

8. Thermoplastic Cap Ply: Allow the membrane to relax before installing.

Install in interply adhesive applied at the rate required by the manufacturer. Shingle sheets uniformly over the prepared substrate to achieve the number of plies specified. Shingle in proper direction to shed water on each large area of roofing.

9. All field seams exceeding 10 feet in length shall be welded with an approved automatic welder.

10. All field seams must be clean and dry prior to initiating any field welding.

Remove foreign materials from the seams (dirt, oils, etc.) with acetone or authorized alternative. Use CLEAN WHITE COTTON cloths and allow approximately five minutes for solvents to dissipate before initiating the automatic welder. Do not use denim or synthetic rags for cleaning,

11. Contaminated areas within a membrane seam will inhibit proper welding and will require a membrane patch or strip.

12. All welding shall be performed only by qualified personnel to ensure the quality and continuity of the weld. The lap or seam area of the membrane may be intermittently tack welded to hold the membrane in place.

13. The back interior edge of the membrane shall be welded first, with a thin, continuous weld to concentrate heat along the exterior edge of the lap during the final welding pass.

14. Follow local code requirements for electric supply, grounding and surge protection. The use of a dedicated, portable generator is highly recommended to ensure a consistent electrical supply, without fluctuations that can interfere with weld consistency.

15. Properly welded seams shall utilize a 1.5 inch wide nozzle, to create a homogeneous weld, a minimum of 1.5 inches in width.

B. Fibrous Cant Strips: Provide non-combustible perlite or glass fiber cant strips at all wall/curb detail treatments where angle changes are greater than 45 degrees.

Cant may be set in approved cold adhesives, hot asphalt or mechanically attached with approved plates and fasteners.

C. Wood Blocking, Nailers and Cant Strips: Provide wood blocking, nailers and cant strips as specified in Section 06114.

1. Provide nailers at all roof perimeters and penetrations for fastening membrane flashings and sheet metal components.

2. Wood nailers should match the height of any insulation, providing a smooth and even transition between flashing and insulation areas.

3. Nailer lengths should be spaced with a minimum 1/8 inch gap for expansion and contraction between each length or change of direction.

4. Nailers and flashings should be fastened in accordance with Factory Mutual "Loss Prevention Data Sheet 1- 49, Perimeter Flashing" and be designed to be capable of resisting a minimum force of 200 lbs/lineal foot in any direction.

D. Metal Work: Provide metal flashings, counter flashings, parapet coping caps and thru-wall flashings as specified in Section 07620 or Section 07710. Install in accordance with the SMACNA "Architectural Sheet Metal Manual" or the NRCA Roofing Waterproofing manual.
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E. Termination Bar: Provide a metal termination bar or approved top edge securement at the terminus of all flashing sheets at walls and curbs. Fasten the bar a minimum of 8 inches (203 mm) o/c to achieve constant compression.

Provide suitable, sealant at the top edge if required.

F. Flashing Base Ply: Install flashing sheets by the same application method used for the b'ase ply.

1. Seal curb, wall and parapet flashings with an application of mastic and mesh on a daily basis. Do not permit conditions to exist that will allow moisture to enter behind, around or under the roof or flashing membrane.

2. Prepare all walls, penetrations, expansion joints and where shown on the Drawings to be flashed with required primer at the rate of 100 square feet per gallon. Allow primer to dry tack free.

3. Adhere to the underlying base ply with specified flashing ply adhesive unless otherwise specified. Nail off at a minimum of 8 inches (203 mm) o.c. from the finished roof at all vertical surfaces.

4. Solidly adhere the entire flashing ply to the substrate. Secure the tops of all flashings that are not run up and over curb through termination bar fastened at 6 inches (152 mm) O.C. and sealed at top.

5. Coordinate counter flashing, cap flashings, expansion joints and similar work with modified bitumen roofing work as specified.

6. Coordinate roof accessories, miscellaneous sheet metal accessory items, including piping vents and other devices with the roofing system work.

7. Secure the top edge of the flashing sheet using a termination bar only when the wall surface above is waterproofed, or nailed 4 inches on center and covered with an acceptable counter flashing.

G. Flashing Cap Ply:

2. Prepare all walls, penetrations, expansion joints and where shown on the Drawings to be flashed with required primer at the rate of 100 square feet per gallon. Allow primer to dry tack free.

3. Adhere to the underlying base flashing ply with specified flashing ply adhesive unless otherwise specified. Nail off at a minimum of 8 inches (203 mm) o.c. from the finished roof at all vertical surfaces.

4. Coordinate counter flashing, cap flashings, expansion joints and similar work with modified bitumen roofing work as specified.

5. Coordinate roof accessories, miscellaneous sheet metal accessory items with the roofing system work.

6. All stripping shall be installed prior to flashing cap sheet installation.

7. Heat and scrape granules when welding or adhering at cut areas and seams to granular surfaces at all flashings.

8. Secure the top edge of the flashing sheet using a termination bar only when the wall surface above is waterproofed, or nailed 4 inches on center and covered with an acceptable counter flashing.

H. Roof Walkways: Provide walkways in areas indicated on the Drawings or at a minimum;
a. Install walk way pads in a path from all roof access points to and around all HVAC and serviceable mechanical equipment, to and around roof hatches, and as designated by the owner.
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3,6. INSTALLATION EDGE TREATMENT AND ROOF PENETRATION FLASHING A. Fabricated Flashings: Fabricated flashings and trim are provided as specified in Section 07620.

1. Fabricated flashings and trim shall conform to the detail requirements of SMACNA "Architectural Sheet Metal Manual" and/or the Copper Development Association "Copper in Architecture - Handbook" as applicable.

B. Metal Edge:

1. Inspect the nailers to assure proper attachment and configuration.

2. Run one ply over the edge. Assure coverage of all wood nailers. Fasten plies with ring shank nails at 8 inches (203 mm) o.c.

3. Install continuous cleat and fasten at 6 inches (152 mm) o.c.

4. Install new Clad Metal edge hooked to continuous cleat. Fasten flange to wood nailers every 3 inches (76 mm) o.c. staggered.

5. Strip in flange with KEE Stripping Membrane with 6 inches (152 mm) on to the field of roof. Assure ply laps do not coincide with metal laps.

C. Roof Edge With Gutter:

1. Inspect the nailer to assure proper attachment and configuration. Increase slope at metal edge by additional degree of slope in first board.

2. Run one ply over the edge. Assure coverage of all wood nailers. Fasten plies with ring shank nails at 8 inches (203 mm) o.c.

3. Install gutter and strapping.

4. Install continuous cleat and fasten at 6 inches (152 mm) o.c.

5. Install new Clad Metal metal edge hooked to continuous cleat and Fasten flange to wood nailer every 3 inches (76 mm) o.c. staggered.

6. Strip in flange with KEE Membrane Stripping ply covering entire flange.

Assure ply laps do not coincide with metal laps.

D. Scupper Through Wall (Overflow):

1. Inspect the nailer to assure proper attachment and configuration.

2. Run one ply over nailer up the overflow, into the scupper hole and up flashing as in typical wall flashing detail. Assure coverage of all wood nailers.

3. Install scupper box in a 1/4 inch (6 mm) bed of mastic. Assure all box seams are soldered and have a minimum 4 inch (101 mm) flange. Make sure all corners are closed and soldered.

4. Fasten flange of scupper box every 3 inches (76 mm) o.c. staggered.

5. Strip in flange scupper box with KEE Stripping ply covering entire area with 6 inch (152 mm) overlap on to the field of the roof and wall flashing.

E. Coping Cap:

1. Minimum flashing height is 8 inches (203 mm) above finished roof height.

Maximum flashing height is 24 inches (609 mm).

2. Set cant in bitumen. Run all field plies over cant a minimum of 2 inches (50 mm).

3. Attach tapered board to top of wall.

4. Install base flashing ply covering entire wall and wrapped over top of wall and down face with 6 inches (152 mm) on to field of roof and set in cold adhesive. Nail membrane at 8 inches (203 mm) o.c.

5. Install continuous cleat and fasten at 6 inches (152 mm) o.c. to outside wall.
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6. Install new metal coping cap hooked to continuous cleat.

7. Fasten inside cap 24 inches (609 mm) o.c. with approved fasteners and neoprene washers through slotted holes, which allow for expansion and contraction.

F. Surface Mounted Counterflashing:

1. Minimum flashing height is 8 inches (203 mm) above finished roof height.

Maximum flashing height is 24 inches (609 mm). Prime vertical wall at a rate of 100 square feet per gallon and allow to dry.

2. Set cant in bitumen. Run all field plies over cant a minimum of 2 inches (50 mm).

3. Install base flashing ply covering wall set in bitumen with 6 inches (152 mm) on to field of the roof.

4. Install KEE Membrane ply in adhesive over the base flashing ply, 9 inches (228 mm) on to the field of the roof.

5. Apply butyl tape to wall behind flashing. Secure termination bar through flashing, butyl tape and into wall. Alternatively use caulk to replace the butyl tape.

6. Secure counterflashing set on butyl tape above flashing at 8 inches (203 mm) o.c. and caulk top of counterflashing.

G. Curb Detail/Air Handling Station:

1. Minimum curb height is 8 inches (203 mm) above finished roof height. Set cant in bitumen. Run all field plies over cant a minimum of 2 inches (50 mm).

2. Install base flashing ply covering curb set in bitumen with 6 inches (152 mm) on to field of the roof.

3. Install a KEE Membrane ply in adhesive over the base flashing ply, 9 inches (228 mm) on to the field of the roof.

4. Install pre-manufactured counterflashing with fasteners and neoprene washers or per manufacturer's recommendations.

5. Set equipment on neoprene pad and fasten as required by equipment manufacturer.

H. Roof Drain:

1. Plug drain to prevent debris from entering plumbing.

2. Taper insulation to drain minimum of 24 inches (609 mm) from center of drain.

3. Install base flashing ply ( 40 inch square minimum) in bitumen.

4. Set lead/copper flashing (30 inch square minimum) in 1/4 inch (6 mm) bed of mastic. Run lead/copper into drain a minimum of 2 inches (50 mm).

Prime lead/copper at a rate of 100 square feet per gallon and allow to dry.

5. Run roof system plies over drain. Cut out plies inside drain bowl.

6. Install modified membrane ( 48 inch square minimum) in bitumen.

7. Install clamping ring and assure that all plies are under the clamping ring.

8. Remove drain plug and install strainer.

I. Plumbing Stack:

1. Minimum stack height is 12 inches (609 mm).

2. Run roof system over the entire surface of the roof. Seal the base of the stack with elastomeric sealant.

3. Set lead/copper flashing in 1/4 inch (6 mm) bed of mastic.

4. Caulk the intersection of the membrane with elastomeric sealant.

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J. Heat Stack:

1. Minimum stack height is 12 inches (609 mm).

2. Run roof system over the entire surface of the roof. Seal the base of the stack with elastomeric sealant.

3. Prime flange of new sleeve. Install properly sized sleeves set in 1/4 inch (6 mm) bed of roof cement.

4. Install base flashing ply in bitumen.

5. Install modified membrane in bitumen.

6. Caulk the intersection of the membrane with elastomeric sealant.

7. Install new collar over cape. Weld collar or install stainless steel draw brand.

3.7. CLEANING
A. Clean-up and remove daily from the site all wrappings, empty containers, paper, loose particles and other debris resulting from these operations.

B. Remove asphalt markings from finished surfaces.

C. Repair or replace defaced or disfigured finishes caused by Work of this section.

3.8. PROTECTION
A. Provide traffic ways, erect barriers, fences, guards, rails, enclosures, chutes and the like to protect personnel, roofs and structures, vehicles and utilities.

B. Protect exposed surfaces of finished walls with tarps to prevent damage.

C. Plywood for traffic ways required for material movement over existing roofs shall be not less than 5/8 inch (16 mm) thick,
D. In addition to the plywood listed above, an underlayment of minimum 1/2 inch (13 mm) recover board is required on new roofing.

E. Special permission shall be obtained from the Manufacturer before any traffic shall be permitted over new roofing.

3.9. FIELD QUALITY CONTROL
A. Inspection: Provide manufacturer's field observations at start-up and two (2) days per week through project completion. Provide a final inspection upon completion of the Work.

1. Warranty shall be issued upon manufacturer's acceptance of the installation.

2. Field observations shall be performed by a representative employed fulltime by the manufacturer and whose primary job description is to assist, inspect and approve membrane installations for the manufacturer.

3. Provide observation reports from the representative indicating procedures followed, weather conditions and any discrepancies found during inspection.

4. Provide a final report from the representative, certifying that the roofing system has been satisfactorily installed according to the project specifications, approved details and good general roofing practice.

3.10.SCHEDULES
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A. Base (Ply) Sheet: Flexbase 80 Base Sheet (80 mil): 80 mil SBS (StyreneButadiene-Styrene) rubber modified roofing membrane reinforced with a fiberglass scrim, performance requirements according to ASTM D 6163. a. Tensile Strength, ASTM D 5147

1. 2 in/min. @ 73.4 +/- 3.6 deg. F MD 225 lbf/in XD 225 lbf/in

2. 50mm/min. @ 23 +/- 2 deg. C MD 8.75 kN/m XD 8.75 kN/m b. Tear Strength, ASTM D 5147

1. 2 in/min.@ 73.4 +/- 3.6 deg. F MD 300 lbf XD 300 lbf

2. 50mm/min. @ 23 +/- 2 deg. C MD 444.8 N XD 444.8 N
c. Elongation at Maximum Tensile, ASTM D 5147

1. 2 in/min.@ 73.4 +/- 3.6 deg. F MD 7.0 % XD 7.0 %

2. 50mm/min@ 23 +/- 2 deg. C MD 7.0 % XD 7.0 %
d. Low Temperature Flexibility, ASTM D 5147, Passes -30 deg. F (-28.8 deg. C)
B. Thermoplastic/Modified Cap (Ply) Sheet:

1. KEE-Stone FB 60: 60 mil thermoplastic, ketone ethylene ester (KEE) roofing membrane with polyester scrim. ASTM D6754
a. Breaking Strength, ASTM D 751, Proc. B, strip

1. 375 lbf. (1,668 N)
b. Tear Strength ASTM D 751

1. 120 lbf. min. (534 N)
c. Elongation at Break(%), ASTM D 751, Proc. B, Strip

1. 40.0%
C. Interply Adhesive's:

1. Green-Lock Plus Membrane Adhesive: Cold applied solvent free membrane adhesive: zero V.O.C. compliant performance requirements:
a. Non-Volatile Content ASTM D 4586 100%
b. Density ASTM D 1475 11.4 lbs./gal. (1.36 g/m3)
c. Viscosity Brookfield 20,000-50,000 cPs,
d. Flash Point ASTM D 93 400 deg. F min. (232 deg. C)
e. Slope: up to 3: 12

2. Flashing Ply Adhesive: Green-Lock Plus Flashing Adhesive: Cold applied solvent free flashing adhesive: zero V.O.C.
a. Non-Volatile Content ASTM D 4586 100%
b. Density ASTM D 1475 11.8 lbs./gal. (1.17 g/cm3)
c. Viscosity Brookfield 400,000 cPs.
d. Flash Point ASTM D 93 400 deg. F min. (232 deg. C) G

3. KEE-Lock Spatter Spray: Dual component, single bead (spatter applied) urethane insulation/membrane adhesive.
a. Tensile Strength (ASTM D 412) 250 psi
b. Density (ASTM D 1875) 8.5 lbs./gal.
c. Viscosity (ASTM D 2556) 22,000 - 60,000 cP
d. Peel Strength (ASTM D 903) 17 lb./in.
e. Flexibility (ASTM D 816) Pass@ -70 deg. F (-56.7 deg. C)

4. Flashing Ply Adhesive: KEE-Lock WB Bonding Adhesive: Contact bonding adhesive specifically designed for bonding KEE membranes and flashings to vertical substrates.
a. Coverage: 1 - 1.5 gal per sq both sides
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b. Color: Blue
c. voe: o g/1
D. Surfacing:

1. Flashing Membrane Sheet:

2. KEE-Stone NF 60 Flashing

1. Breaking Strength: 375

2. Tear Strength: 145 x 200

3. Color: White

4. Thickness: 60 mil

3.10 ROOFING INSTALLER'S WARRANTY
A. WHEREAS _____________ of
------------~ herein called the "Roofing Installer," has performed roofing and associated work ("work") on the following project: 1. Owner: ___ • _____ _

2. Address: _______ _

3. Building Name/Type: _______ _

4. Address:--,,---------·

5. Area of Work: _________ _

6. Acceptance Date: _______ _

7. Warranty Period: Five Years.

8. Expiration Date: ________ _
B. AND WHEREAS Roofing Installer has contracted (either directly with Owner or indirectly as a subcontractor) to warrant said work against leaks and faulty or defective materials and workmanship for designated Warranty Period, C. NOW THEREFORE Roofing Installer hereby warrants, subject to terms and conditions herein set forth, that during Warranty Period he will, at his own cost and expense, make or cause to be made such repairs to or replacements of said work as are necessary to correct faulty and defective work and as are necessary to maintain said work in a watertight condition.

D. This Warranty is made subject to the following terms and conditions:

1. Specifically excluded from this Warranty are damages to work and other parts of the building, and to building contents, caused by:
a. lightning;
b. peak gust wind speed exceeding 120 MPH;
c. fire;
d. failure of roofing system substrate, including cracking, settlement, excessive deflection, deterioration, and decomposition; e. faulty construction of parapet walls, copings, chimneys, skylights, vents, equipment supports, and other edge conditions and penetrations of the work;
f. vapor condensation on bottom of roofing; and
g. activity on roofing by others, including construction contractors, maintenance personnel, other persons, and animals, whether authorized or unauthorized by Owner.

2. When work has been damaged by any of foregoing causes, Warranty shall be null and void until such damage has been repaired by Roofing Installer and 07 55 00- MODIFIED MEMBRANE ROOFING

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until cost and expense thereof have been paid by Owner or by another responsible party so designated.

3. Roofing Installer is responsible for damage to work covered by this Warranty but is not liable for consequential damages to building or building contents resulting from leaks or faults or defects of work.

4. During Warranty Period, if Owner allows alteration of work by anyone other than Roofing Installer, including cutting, patching, and maintenance in connection with penetrations, attachment of other work, and positioning of anything on roof, this Warranty shall become null and void on date of said alterations, but only to the extent said alterations affect work covered by this Warranty. If Owner engages Roofing Installer to perform said alterations, Warranty shall not become null and void unless Roofing Installer, before starting said work, shall have notified Owner in writing, showing reasonable cause for claim, that said alterations would likely damage or deteriorate work, thereby reasonably justifying a limitation or termination of this Warranty. 5, During Warranty Period, if original use of roof is changed and it becomes used for, but was not originally specified for, a promenade, work deck, spray-cooled surface, flooded basin, or other use or service more severe than originally specified, this Warranty shall become null and void on date of said change, but only to the extent said change affects work covered by this Warranty.

6. Owner shall promptly notify Roofing Installer of observed, known, or suspected leaks, defects, or deterioration and shall afford reasonable opportunity for Roofing Installer to inspect work and to examine evidence of such leaks, defects, or deterioration.

7. This Warranty is recognized to be the only warranty of Roofing Installer on said work and shall not operate to restrict or cut off Owner from other remedies and resources lawfully available to Owner in cases of roofing failure.

Specifically, this Warranty shall not operate to relieve Roofing Installer of responsibility for performance of original work according to requirements of the Contract Documents, regardless of whether Contract was a contract directly with Owner or a subcontract with Owner's General Contractor.

E. IN WITNESS THEREOF, this instrument has been duly executed this ____ _ day of ________________ _

1. Authorized Signature: __________________ _ 2. Name: _________________ _

3. Title: __________________ _

END OF SECTION
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SECTION 07 62 00

SHEET METAL FLASHING AND TRIM

1.GENERAL

1. RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

2. SUMMARY
A. Section Includes:

1. Manufactured through-wall flashing with counterflashing

2. Formed low-slope roof sheet metal fabrications.

3. Formed wall, coping, and soffit sheet metal fabrications.

4. Formed equipment support flashing

5. Surface mounted counter flashing

6. Manufactured reglets and counter flashing

7. Edge metal/ gravel stop and cleat flashing

8. Gutters & Downspouts
B. Related Requirements:

1. Division 06 "Rough Carpentry" for wood nailers, curbs, and blocking.

2. Division 07 "Membrane Roofing" for materials and installation of sheet metal flashing and trim integral with roofing.

3. Division 07 "Asphalt Shingles" for materials and installation of sheet metal flashing and trim integral with roofing.

3. COORDINATION
A. Coordinate sheet metal flashing and trim layout and seams with sizes and locations of penetrations to be flashed, and joints and seams in adjacent materials.

B. Coordinate sheet metal flashing and trim installation with adjoining roofing and wall materials, joints, and seams to provide leak proof, secure, and noncorrosive installation.

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4. PREINSTALLATION MEETINGS
A. Pre Installation Conference: Conduct conference at Project site.

1. Review construction schedule. Verify availability of materials, Installer's personnel, equipment, and facilities needed to make progress and avoid delays.
2, Review special roof details, roof drainage, roof-penetration flashing, equipment curbs, and condition of other construction that affect sheet metal flashing and trim.

3. Review requirements for insurance and certificates if applicable.

4. Review sheet metal flashing observation and repair procedures after flashing installation.
5, SUBMITTALS
A, Product Data: For each type of product.

1. Include construction details, material descriptions, dimensions of individual components and profiles, and finishes for each manufactured product and accessory.

B. Shop Drawings: For sheet metal flashing and trim.

1. Include plans, elevations, sections, and attachment details.

2. Detail fabrication and installation layouts, expansion-joint locations, and keyed details. Distinguish between shop- and field-assembled work.

3. Include identification of material, thickness, weight, and finish for each item and location in Project.

4. Include details for forming, including profiles, shapes, seams, and dimensions.

5. Include details for joining, supporting, and securing, including layout and spacing of fasteners, cleats, clips, and other attachments. Include pattern of seams.

6. Include details of termination points and assemblies.

7. Include details of expansion joints and expansion-joint covers, including showing direction of expansion and contraction from fixed points.

8. Include details of roof-penetration flashing.

9. Include details of edge conditions, including eaves, ridges, valleys, rakes, crickets, and counter flashings as applicable.

10. Include details of special conditions.

11. Include details of connections to adjoining work.

12. Detail formed flashing and trim at scale of not less than 3 inches per 12 inches
C. Samples for Initial Selection: For each type of sheet metal and accessory indicated with factory-applied finishes.

D. Samples for Verification: For each type of exposed finish.

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6. A.

7. A.

1. Sheet Metal Flashing: 12 inches (300 mm) long by actual width of unit, including finished seam and in required profile. Include fasteners, cleats, clips, closures, and other attachments.

2. Trim, Metal Closures, Expansion Joints, Joint Intersections, and Miscellaneous Fabrications: 12 inches (300 mm) long and In required profile. Include fasteners and other exposed accessories.

INFORMATIONAL SUBMITTALS
Qualification Data: For fabricator.

Product Certificates: For each type of coping and roof edge flashing that is ANSI SPRI ES-1 tested.

Product Test Reports: For each product, for tests performed by a qualified testing agency.

Sample Warranty: For special warranty.

CLOSEOUT SUBMITTALS
Maintenance Data: For sheet metal flashing and trim, and its accessories, to include in maintenance manuals.

8. QUALITY ASSURANCE
A. Fabricator Qualifications: Employs skilled workers who custom fabricate sheet metal flashing and trim similar to that required for this Project and whose products have a record of successful in-service performance.

1. For copings and roof edge flashings that are SPRI ES-1 tested, shop shall be listed as able to fabricate required details as tested and approved.

9. DELIVERY, STORAGE, AND HANDLING
A. Do not store sheet metal flashing and trim materials in contact with other materials that might cause staining, denting, or other surface damage. Store sheet metal flashing and trim materials away from uncured concrete and masonry.

B. Protect strippable protective covering on sheet metal flashing and trim from exposure to sunlight and high humidity, except to extent necessary for period of sheet metal flashing and trim installation.

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10. WARRANTY
A. Owner shall receive one (1) 30 Year No Dollar Limit warranty from manufacturer of roofing materials covering all of the following criteria.

Multiple warranties are not acceptable.

1. Pre-finished metal material shall require a written twenty (20)-year non-prorated warranty covering fade, chalking and film integrity. The material shall not show a color change greater than 5 NBS color units per ASTM D2244 or chalking excess of 8 units per ASTM D659. If either occurs material shall be replaced per warranty, at no cost to the Owner.

2. Changes: Changes or alterations in the edge metal system without prior written consent from the manufacturer shall render the system unacceptable for a warranty.

3. Warranty shall commence on date of substantial completion or final payment, whichever is agreed by contract.

4. The Contractor shall provide the Owner with a notarized written warranty assuring that all sheet metal work including caulking and fasteners to be watertight and secure for a period of two years from the date of final acceptance of the building. Warranty shall include all materials and workmanship required to repair any leaks that develop, and make good any damage to other work or equipment caused by such leaks or the repairs thereof.

5. Installing roofing contractor shall be responsible for the installation of the edge metal system in general accordance with the membrane manufacturer's recommendations.

6. Installing contractor shall certify that the edge metal system has been installed per the manufacturer's printed details and specifications.

7. One manufacturer shall provide a 30 Year No Dollar Limit Warranty as a single warranty for all accessory metal for flashings, metal edges and copings, along with the warranty for metal roof areas, membrane roof areas, and any transitions between two different material types.

2.PRODUCTS

1. PERFORMANCE REQUIREMENTS
A. General: Sheet metal flashing and trim assemblies shall withstand wind loads, structural movement, thermally induced movement, and exposure to weather without failure due to defective manufacture, fabrication, installation, or other defects in construction. Completed sheet metal flashing and trim shall not rattle, leak, or loosen, and shall remain watertight.

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B. Sheet Metal Standard for Flashing and Trim: Comply with NRCA's "The NRCA Roofing Manual" and SMACNA's "Architectural Sheet Metal Manual" requirements for dimensions and profiles shown unless more stringent requirements are indicated.

C. Sheet Metal Standard for Copper: Comply with CDA's "Copper in Architecture Handbook." Conform to dimensions and profiles shown unless more stringent requirements are indicated.

D. SPRI Wind Design Standard: Manufacture and install roof edge flashings tested according to SPRI ES-1 and capable of resisting the following design pressure:

1. Design Pressure: As indicated on Drawings.

E. Thermal Movements: Allow for thermal movements from ambient and surface temperature changes to prevent buckling, opening of joints, overstressing of components, failure of joint sealants, failure of connections, and other detrimental effects. Base calculations on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.

1. Temperature Change: 120 deg F (67 deg C), ambient; 180 deg F (100 deg C), material surfaces.

2. COPING
A. The design is based upon roofing systems engineered and manufactured by the Garland Company:

The Garland Company, Inc.

Rich Jones
Telephone: 559-647-1196
Email: [email protected]

1. General: Product designations for the materials used in this section shall be based on performance characteristics of the R-MER Edge System manufactured by the Garland Company, Cleveland, OH, and shall form the basis of the contract documents.

2. R-Mer Edge Fascia or Extruded Fascia Continuous Cant a. Zinc-coated steel, ASTM A653, coating designation G-90, in thickness of 0.0299 nom./ 22 gauge, 36" to 48" by coil length, chemically treated, commercial or lock-forming quality.

3. R-Mer Edge Coping Chairs
a. Zinc-coated steel, ASTM A653, coating designation G-90, in thickness of 0.0635 nom./ 16 gauge, 36" to 48" by coil length, chemically treated, commercial or lock-forming quality.

4. R-Mer Edge Fascia/drip edge
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a. Zinc-coated steel, ASTM A653, coating designation G-90, in thickness of 22 gauge, 36" to 48" by coil length, chemically treated, commercial or lock-forming quality.

5. R-Mer Edge Coping
a. Zinc-coated steel, ASTM A653, coating designation G-90, in thickness of 22 gauge 36" to 48" by coil length, chemically treated, commercial or lock-forming quality.

3. SHEET METALS
A. General: Protect mechanical and other finishes on exposed surfaces from damage by applying strippable, temporary protective film before shipping.

B. Metallic-Coated Steel Sheet: Provide zinc-coated (galvanized) steel sheet according to ASTM A 653/ A 653M, G90 (2275) coating designation; prepainted by coil-coating process to comply with ASTM A 755/A 755M.

1. Surface: Smooth, flat and with manufacturer's standard clear acrylic coating on both sides.

2. Exposed Coil-Coated Finish:
a. Two-Coat Fluoropolymer: AAMA 621. Fluoropolymer finish containing not less than 70 percent PVDF resin by weight in both color coat and clear topcoat. Prepare, pretreat, and apply coating to exposed metal surfaces to comply with coating and resin manufacturers' written instructions.

3. Color: Match Architect's sample

4. Concealed Finish: Pretreat with manufacturer's standard white or lightcolored acrylic or polyester backer finish, consisting of prime coat and wash coat with minimum total dry film thickness of 0.5 mil (0.013 mm).

4. UNDERLAYMENT MATERIALS
A. Self-Adhering, High-Temperature Sheet: Minimum 45 mils thick, consisting of a slip-resistant polyethylene- or polypropylene-film top surface laminated to a layer of butyl- or SBS-modified asphalt adhesive, with release-paper backing; specifically designed to withstand high metal temperatures beneath metal roofing. Provide primer according to written recommendations of underlayment manufacturer.
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1. The Garland Company Inc., 3800 E. 91st Street Cleveland OH 44105; R-Mer Seal self-adhering underlayment. Local Representative: Richard Jones (559) 647-1196 [email protected]

2. Thermal Stability: ASTM D 1970; stable after testing at 240 deg F or higher.

3. Low-Temperature Flexibility: ASTM D 1970; passes after testing at minus 20 deg For lower.

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B. Slip Sheet: Rosin-sized building paper, 3 lb/100 sq. ft. minimum.

5. MISCELLANEOUS MATERIALS
A. General: Provide materials and types of fasteners, solder, protective coatings, sealants, and other miscellaneous items as required for complete sheet metal flashing and trim installation and as recommended by manufacturer of primary sheet metal unless otherwise indicated.

B. Fasteners: Wood screws, annular threaded nails, self-tapping screws, selflocking rivets and bolts, and other suitable fasteners designed to withstand design loads and recommended by manufacturer of primary sheet metal or manufactured item.

1. General: Blind fasteners or self-drilling screws, gasketed, with hexwasher head. a. Exposed Fasteners: Heads matching color of sheet metal using plastic caps or factory-applied coating. Provide metal-backed EPDM or PVC sealing washers under heads of exposed fasteners bearing on weather side of metal.
b. Blind Fasteners: High-strength aluminum or stainless-steel rivets suitable for metal being fastened.
c. Spikes and Ferrules: Same material as gutter; with spike with ferrule matching internal gutter width.
2, Fasteners for Zinc-Tin Alloy-Coated Stainless-Steel Sheet: Series 300 stainless steel.

C. Solder:

1. For Zinc-Coated (Galvanized) Steel: ASTM B 32, Grade Sn SO, 50 percent tin and 50 percent lead or Grade Sn60, 60 percent tin and 40 percent lead with maximum lead content of 0.2 percent.

D. Sealant Tape: Pressure-sensitive, 100 percent solids, polyisobutylene compound sealant tape with release-paper backing. Provide permanently elastic, nonsag, nontoxic, nonstaining tape 1/2 inch wide and 1/8 inch thick.

E. Elastomeric Sealant: ASTM C 920, elastomeric polyurethane polymer sealant; of type, grade, class, and use classifications required to seal joiAts in sheet metal flashing and trim and remain watertight.

F. Butyl Sealant: ASTM C 1311, single-component, solvent-release butyl rubber sealant; polyisobutylene plasticized; heavy bodied for hooked-type expansion joints with limited movement.

G. Bituminous Coating: Cold-applied asphalt emulsion according to ASTM D 1187.

H. Asphalt Roofing Cement: ASTM D 4586, asbestos free, of consistency required for application.

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6, FABRICATION, GENERAL
A. General: Custom fabricate sheet metal flashing and trim to comply with details shown and recommendations in cited sheet metal standard that apply to design, dimensions, geometry, metal thickness, and other characteristics of item required. Fabricate sheet metal flashing and trim in shop to greatest extent possible.

1. Fabricate sheet metal flashing and trim in thickness or weight needed to comply with performance requirements, but not less than that specified for each application and metal.

2. Obtain field measurements for accurate fit before shop fabrication.

3. Form sheet metal flashing and trim to fit substrates without excessive oil canning, buckling, and tool marks; true to line, levels, and slopes; and with exposed edges folded back to form hems.

4. Conceal fasteners and expansion provisions where possible. Do not use exposed fasteners on faces exposed to view.

B. Fabrication Tolerances: Fabricate sheet metal flashing and trim that is capable of installation to a tolerance of l/4 inch in 20 feet on slope and location lines indicated on Drawings and within 1/8-inch offset of adjoining faces and of alignment of matching profiles.

C. Expansion Provisions: Form metal for thermal expansion of exposed flashing and trim.

1. Form expansion joints of intermeshing hooked flanges, not less than 1 inch deep, filled with butyl sealant concealed within joints.

2. Use lapped expansion joints only where indicated on Drawings.

D. Sealant Joints: Where movable, non expansion-type joints are required, form metal to provide for proper installation of elastomeric sealant according to cited sheet metal standard.

E. Fabricate cleats and attachment devices from same material as accessory being anchored or from compatible, noncorrosive metal.

F. Seams: Fabricate nonmoving seams with flat-lock seams. Form seams and seal with elastomeric sealant unless otherwise recommended by sealant manufacturer for intended use.

G. Do not use graphite pencils to mark metal surfaces.

7. ROOF-DRAINAGE SHEET METAL FABRICATIONS
A. Hanging Gutters: Fabricate to cross section required, complete with end pieces, outlet tubes, and other accessories as required. Fabricate in minimum 96-inch- long sections. Furnish flat-stock gutter brackets and flatstock gutter spacers and straps fabricated from same metal as gutters, of size recommended by cited sheet metal standard but with thickness not less than dimension indicated on Drawings. Fabricate expansion joints, SECTION 076200 - SHEET METAL FLASHING/ TRIM
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expansion-joint covers, gutter bead reinforcing bars, and gutter accessories from same metal as gutters. Shop fabricate interior and exterior corners.

1. Gutter Profile: Style B according to cited sheet metal standard.

2. Expansion Joints: Butt type with cover plate.

3. Accessories: Continuous, removable leaf screen with sheet metal frame and hardware cloth screen.

4. Gutters with Girth up to 15 Inches: Fabricate from the following materials:
a. Galvanized Steel: 22 gauge thickness.

B. Downspouts: Fabricate downspouts per plans and details or per size per CA plumbing code, Fabricate from the following materials unless otherwise shown on drawings.