Attachment D
Roof Management Reports
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CITY OF VICTORVILLE
AVENAL TREATMENTPLANT
Prepared for:
Eddie Gleason
City of Victorville
[email protected]
(760) 955-5256
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Prepared by:
Kody Berry
Technical Manager
[email protected]
(909) 477-1842
Video/ More Information I Next Steps
Kody Berry
WEATHERWELD
2/19/2024 J 10 Photos
City of Victorville - Avenal Treatment Plant
Cover Page 1 / 6City of Victorville. Avenal Treatment Plant -City of Victorville -Avenal Treatment Plant 3 City of Victorville-Avenal Treatment Plant
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2119/2024
This aerial photo shows all sections of the building. The aerial map includes GPS dimensions of the buildings that are included in this report. The areas are outlined in red boxes. These dimensions are the area and size basis of
this report.
Measurements are from aerial survey and do not include
roof slope. This image is for internal use and not to be used for bidding purposes.
Project: City of Victorville, Avenal Treatment Plant
Date· 2/19/2024, 7:54am
Creator: Kody Berry
The roof was core tested to determine the components of the roofing system from the deck up.
The roof assembly for this building consists of a:
• Metal Deck
• ISO Insulation
• Built Up Roof
This core test hole was patched and is 100% watertight.
The core sample was retained for our internal testing.
Project. City of Victorville, Avenal Treatment Plant
Date: 2/12/2024, 1:05pm
Create,: Kody Berry
This type of roof consist of multiple layers of rolls that are made of waterproof with asphalt. Because this type
of roof relies on adhesive or asphalt waterproofing in be tween seams, it is difficult to keep this type of roof water tight as the roof system ages. On the roof of this type with the amount of penetrations, and considering the age of
the roof, a permanent solution is required in order to keep this building watertight in the long term.
Project· City of Victorville. Avenal Treatment Plant
Date: 2/12/2024, 1:01pm
Creator: Kody Berry
3/6
5 City of Victor ville, Avenal Treatment Plant
City o1 Victorville• Avenal T reatmcnt Plant
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There are several areas on this roof that have delamina tion of roofing material that have caused openings, allow ing water to enter the building. This is typically caused by building movement, expansion or contraction in the roof system, lack of attachment between roof system com
ponents, or material incompatibility. This can also occur in high wind areas if the roof material was incorrectly attached or adhered.
Project: City of Victorville. Avenal Treatment Plant
Dale: 2/12/2024, 1:02pm
Creator, Kody Berry
Covers, pans, or missing components from rooftop equip ment could be allowing water to enter the building. It is recommended to ensure all rooftop equipment is func
tioning properly, and all covers are sealed and water
proofed during regular maintenance.
If replacement is required, it is recommended that rooftop accessory or equipment installation is coordinated with the roofing contractor to be performed in sequence with roof system installation.
Project: City of Victorville, Avenal Treatment Plant
Date: 2/12/2024, 1:02pm
CreDtor: Kody Berry
Based on visual observation, it appears the skylights are deteriorating and could be contributing to water leaks
into the building. It is recommended to remove existing skylights and install new curb mounted skylights that are safety rated. These can be specified with the roofing pro ject, and the skylights will be the last item to install after the roof system is completed.
Project: City of Victorville. Avenal Treatment Plant
Dale: 2/12/2024, 1:13pm
C1 ca tor: Kody Berry
5/6
7 City of Victorville. Avenal Treatment Plant
CITY OF VICTORVILLE
EL EVADO TREATMENT PLANT
Prepared for:
Eddie Gleason
City of Victorville
[email protected]
(760) 955-5256
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Scan QR Code
Prepared by:
Kody Berry
Technical Manager
[email protected]
(909) 477-1842
Video/ More Information/ Next Steps
City o1 V1�torv11\e- El Evade> Tremrnent Plant
City of Victorville - El Evado Treatment
Plant
2/19/2024
City o1 Victorvil!e-EI rvndo lreatment Plant 2/6 City of V1ctorvill�. Balsam Treatment Plant City of Victorville-El Evado Treatment Plant
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City of Victorville -El Evado Treatment Plant
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This aerial photo shows all sections of the building. The aerial map includes GPS dimensions of the buildings that I
are included in this report. The areas are outlined in red boxes. These dimensions are the area and size basis of
this report.
Measurements are from aerial survey and do not include
roof slope. This image is for internal use and not to be used for bidding purposes.
Project: City of Victorville, El Evado Treatment Plant
Date: 2/19/2024. 8:28am
Creator: Kody Berry
The roof was core tested to determine the components of the roofing system from the deck up.
The roof assembly for this building consists of a:
• Metal Roof Deck
• ISO Insulation
• Single Ply Membrane
This core test hole was patched and is 100% watertight.
The core sample was retained for our internal testing.
Project: City of Victorville. Balsam Treatment Plant
Date: 2/12/2024, 1:44pm
Creator: Kody Berry
The omission or lack of a substrate board installed be tween the insulation and the single ply membrane is a
cause for concern.
Insulation boards are not designed to withstand traffic_ This puts unnecessary stress on roof membranes, such as a single ply. Most industry standards require a substrate board between insulation and single ply membranes.
This is a cause of premature failure of single ply mem branes.
Project: City of Victorville, Balsam Treatment Plant
Date: 2/12/2024, 1:44pm
Creator: Kody Berry
3/6 City of Victorville, Balsam Treatment Plant
City of Victorville-El Ev ado Treatment Plant
4 5
6 City of Victorville-El Evado l reatment Plant
2/19/2024
Single ply membranes installed on roofs consist of thin synthetic membranes that are typically between 30 and
80 mils thick.
For reference, these materials range in thickness be
tween a dime and a nickel.
Thin wide sheets of plastic material are fastened or ad hered to the roof deck at edges of the sheets then welded at the edges with a 500
°
hot air welder.
Typical problems with thin plastic synthetic membranes
consist of the following
• Uv deterioration of plastic membrane
Project: City of Victorville, El Evado Treatment Plant
Date· 2/12/2024, 2:08pm
Crestor: Kody Berry
Water drains from this roof through flush mount drains, which can often lead to leaks. These leaks happen be
cause the attachment of the roofing material solely de pends on the tightness of the drains compression ring and bolts. Over time, changes in temperature can cause the
roof material to separate from the drain, resulting in leaks.
WeatherWeld is designed to prevent these leaks by seal ing directly to the sides of the drain bowl, creating triple redundancy. Missing drain screens need replacement.
Project. City of Victorville, El Evado Treatment Plant
Date: 2/12/2024, 2:07pm
Creator: Kody Berry
Synthetic membranes often prematurely fail due to UV
exposure.
Typically, synthetic membranes require protection in the form of paint, or some type of coating in order to remain UV stable.
In the case of single ply membranes, deterioration of the field membrane due to UV exposure is one of the leading causes of premature failures of this type of membranes.
As the roof membrane reaches the end of their useful
life, deterioration of the synthetic membranes becomes
visible.
Project: City of Victorville. El Evado Treatment Plant
Date: 2/12/2024. 2:08pm
Creator: Kody Berry
4/6 City of Victurville, Balsam Treatment Plant
City of Victorville- El Evado Treatment Plant
7 8
9 City of Victorville-El Evado Treatment Plant
2/19/2024
Rooftop accessories for equipment that is directly placed on the roof membrane can cause premature failure. Sharp edges or concentrated loads can cause damage to the
roof membrane. It is recommended to install approved
rooftop supports with proper flashings or roof protection pads to protect the roof membrane from rooftop acces
sory damage.
Project: City of Victorville, El Evado Treatment Plant
Date: 2/12/2024, 2:07pm
Creator: Kody Berry
Equipment and pipes that are bolted to parapet walls are a potential source of roof leaks into the building. When- - ever possible, it is recommended to relocate wall-mount ed equipment onto the roof, using approved equipment
mounts. Where not possible, existing conduit and pipes
will be removed from the parapet wall during roof work, and re-mounted. Anytime equipment penetrates through
the roof membrane either on a wall or the field of the roof, this becomes an area that will require constant mainte nance. The goal is to minimize roof maintenance by in
stalling equipment on approved swpports.
Project: City of Victorville. El Evado Treatment Plant
Date: 2/12/2024, 2:07pm
Creator: Kody Berry
Perimeter flashings show signs of separation or delami nation at sheet metal joints. This could be caused by im proper fastening, flashing deterioration, wind, or adhe sive failures. This condition is a direct funnel of water into the building.
It is recommended that existing sheetmetal coping be re moved and replaced with new flashing during roof work.
Project: City of Victorville, El Evado Treatment Plant
Dale: 2/12/2024. 2:08pm
Creator: Kody Berry
5/6 City of Victorville, Balsam Treatment Plant
City of Victorville El Evndo Treatment Plant
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City of VIctorville Fl Evado Treatment Plant
2/19/2024
Based on visual observation, it appears the skylights are deteriorating and could be contributing to water leaks
into the building. It is recommended to remove existing skylights, and install new curb mounted skylights that
are safety rated. These can be specified with the roofing project, and the skylights will be the last item to install after the roof system is completed.
Project: City of Victorville. El Evado Treatment Plant
Date· 2/12/2024, 2:08pm
Creator: Kody Berry
Rooftop penetrations such as pipes and vent/exhaust
fans are installed in the field of the roof. These types of penetrations are difficult to keep water-tight and require consistent use of repair materials as seen in this pho- to. Existing roof penetrations will be encapsulated with WeatherWeld during roof work, making a seamless tran
sition between the penetration and the field the roof. All rooftop penetrations will have sheet metal storm collars installed above flashings where applicable.
Project: City of Victorville. El Evado Treatment Plant
Dnte: 2/12/2024, 2:10pm
Crentoi: Kody Berry
6/6 City of Victorville. Bals8m Treatment Plant
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CITY OF VICTORVILLE
BALSAM TREATMENT PLANT
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Measurements are from aerial survey and do not include roof slope or parapet walls This image is for internal use and not to be used for bidding.
Prepared for:
Eddie Gleason
City of Victorville
[email protected]
(760) 955-5256
Scan QR Code
Prepared by:
Kody Berry
Technical Manager
[email protected]
(909) 4 77-1842
Video/ More Information / Next Steps
CITY OF VICTORVILLE
WATER DISTRICT
MODULAR A OFFICE & WAREHOUSE
Prepared For:
Eddie Gleason
[email protected]
Prepared By:
Michael Jones
Roof Management Report
CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
REPORT SUMMARY
TOTAL ESTIMATED BUDGET FOR PROJECT (+/- 15%)
$125,339.00
OWNER: City of Victorville
ADDRESS:
14343 Civic Drive
Victorville, CA 92392
CONTACT: Cornell Williams
PHONE: 951-492-8766
PROJECT: City of Victorville Water District
ADDRESS:
13575 Hesperia Road
Victorville, CA
BUILDING: Modular A Office
SQ. FT.: 3,002 Square Feet
ROOF TYPE: Standing Seam Roof
WW SPEC: NCN-1B-16-30-A
BUDGET (+/- 15%): $60,040.00
DOES THIS ROOF NEED
TO BE REPLACED?
Yes
BUILDING: Warehouse Building
SQ. FT.: 5,023 Square Feet
ROOF TYPE: Corrugated Metal Roof
WW SPEC: R-16-30-M-A
BUDGET (+/- 15%): $65,299.00
DOES THIS ROOF NEED
TO BE REPLACED?
No
3 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
BUILDING SUMMARY
BUILDING INFOMATION
BUDGET/SCOPE OF WORK
OWNER: City of Victorville
ADDRESS: 14343 Civic Center Drive, Victorville CA
CONTACT: Eddie Gleason
PHONE: (760) 955-5256
ROOFTOP INSPECTION
INSPECTION DATE: 02/17/2022 CORE SAMPLE: No
INSPECTION TYPE: Visual DECK CONDITION: Fair
ROOF LEAK DATA: Yes SOURCE: Owner
PROJECT: Water District
BUILDING: Modular A Office
ADDRESS:
13575 Hesperia Road
Victorville, CA
AGE SQ. FT. ACCESS SLOPE HEIGHT
15+ 3,002 Ladder ¼”-12” 13
ROOF SYSTEM TYPE LAYERS ATTACHMENT THICKNESS
DECK: Plywood 1 Mechanical ¼”
INSULATION: N/A - - -
EXISTING:
Standing
Seam
Mechanical -
EXISTING ROOF TYPE / RATING
DECK: Fair
FIELD – EXISTING ROOF: Poor
FIELD SEAMS – EXISTING ROOF: Poor
PERIMETER – EXISTING ROOF: Fair
PENETRATIONS – EXISTING
ROOF:
Poor
WALLS – EXISTING: N/A
GUTTERS: N/A
SKYLIGHTS: N/A
COUNTER FLASHINGS: N/A
DEBRIS ON ROOF: No
PONDING WATER: No
OTHER N/A
DETAILS
PERIMETER: Edge Metal
FLASHING: N/A
DRAINAGE: Edge
ROOFTOP EQUIPMENT/ACCESSORIES
TYPE QTY.
MECHANICAL EQUIPMENT: N/A -
PENETRATIONS: Pipe and Vent Few
PERIMETER GUTTER: N/A -
APPROXIMATE TOTAL(+/-15%) WEATHERWELD ROOF SYSTEM WARRANTY LENGTH $60,040.00 NCN-1B-16-30-A 40 Years
4 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
INSPECTION PHOTOS
Modular A at the Water District for City of Victorville consists of portable buildings that have been joined together under one roof.
The building has a plywood roof deck and a standing seam metal roof and is about 3,000 square feet.
5 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
INSPECTION PHOTOS
Standing seam metal consists of sheet metal panels with seams that are crimped and sealed every 12- 15 inches. Sheet metal panels are attached to the substrate using sheet metal screws with rubber washers. The panels on this building are thin gauge sheet metal and should be removed down to the plywood deck in order to start over with this roof and install a strong seamless roof
There is a cap on the joint where the buildings are joined which is a source of leaks. The picture above shows repairs made with temporary mastic, which is not solving the problem.
6 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
INSPECTION PHOTOS
The building drains to the edge and has a few vent penetrations which also have been repaired with temporary mastic. Penetration flashing will be encapsulated during roof work.
7 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
BUILDING SUMMARY
BUILDING INFOMATION
OWNER: City of Victorville
ADDRESS: 14343 Civic Center Drive, Victorville CA
CONTACT: Eddie Gleason
PHONE: (760) 955-5256
ROOFTOP INSPECTION
INSPECTION DATE: 02/17/2022 CORE SAMPLE: No
INSPECTION TYPE: Visual DECK CONDITION: Fair
ROOF LEAK DATA: Yes SOURCE: Owner
PROJECT: Water District
BUILDING: Warehouse
ADDRESS:
13575 Hesperia Road
Victorville, CA
EXISTING ROOF TYPE / RATING
DECK: Fair
FIELD – EXISTING ROOF: Poor
FIELD SEAMS – EXISTING ROOF: Poor
PERIMETER – EXISTING ROOF: Fair
PENETRATIONS – EXISTING
ROOF:
Poor
WALLS – EXISTING: N/A
GUTTERS: Fair
SKYLIGHTS: N/A
COUNTER FLASHINGS: N/A
DEBRIS ON ROOF: No
PONDING WATER: No
OTHER N/A
AGE SQ. FT. ACCESS SLOPE HEIGHT
15+ 5,023 Ladder ¼”-12” 13
ROOF SYSTEM TYPE LAYERS ATTACHMENT THICKNESS
DECK: Metal 1 Mechanical ¼”
INSULATION: N/A - - -
EXISTING:
Corrugated
Metal
Mechanical -
DETAILS
PERIMETER: Edge Metal
FLASHING: N/A
DRAINAGE: Edge
ROOFTOP EQUIPMENT/ACCESSORIES
TYPE QTY.
MECHANICAL EQUIPMENT: HVAC 1
PENETRATIONS: Pipe and Vent Few
PERIMETER GUTTER: N/A -
APPROXIMATE TOTAL (+/-15%) WEATHERWELD ROOF SYSTEM WARRANTY LENGTH $65,299.00 R-16-30-M-A 40 Years
8 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
INSPECTION PHOTOS
The warehouse building at the Water District for City of Victorville is a corrugated metal building with a corrugated metal roof.
The building is about 5,000 square feet.
9 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
INSPECTION PHOTOS
Metal panels are attached to the substrate using sheet metal screws with rubber washers. There are 3 places where metal leaks: fasteners, seams, and terminations.
The rubber seals on fasteners wear out quickly due to expansion and contraction and panel movement.
10 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
INSPECTION PHOTOS
The building has a few vent penetrations which have been repaired with temporary mastic. Encapsulating these penetration flashings will create a roof that is one seamless piece and prevent leaks.
The HVAC unit is sleeper mounted and external ducts that lead into the building. This unit is going to be removed during roof work.
11 CITY OF VICTORVILLE: WATER DISTRICT - MODULAR A OFFICE & WAREHOUSE
INSPECTION PHOTOS
The building drains to gutters that appear to be in fair condition.
12