Architects and Specifiers

For performance and innovation in complete roofing systems, talk to GAF first.

Talk to our teams first.

From guidance on design considerations to assistance with your detail preparation, GAF has teams dedicated to your success.

Questions on installation, code approvals, sustainable options and details?

Talk to our LIVE Technical Support Services
CALL: 1 800 766 3411
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For help with the specification process

Talk to the GAF Architectural Information Services (AIS) team, who are ready to assist with the entire spec process, including master specification preparation, one page cut specs and submittal packages.

CALL AIS at 1 800 522 9224
AIS@gaf.com
For custom tapered design solutions and drawings

Talk to the GAF Tapered Design Group for consult on meeting your project objectives with your budget.

EMAIL: TDG@gaf.com

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For local support, product availability, system integration, guarantees, and more

Make your first call to your local GAF Territory Manager.

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We're Here to Help

GAF Architectural Information Services is here to help answer questions, provide assistance
with master specification preparation and other valuable activities at no charge.

Call us at 877-423-7663, option 4
Email us at AIS@gaf.com

 

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LATEST FROM GAF ROOFVIEWS
Low slope roof penetrations can be a source of problems if not done correctly. Pipe, vent, and conduit penetrations through low slope roof assemblies can cause problems for an otherwise tight membrane, insulation, and deck design. With many intermediate layers in roof assemblies, such as a vapor retarder and cover board, there are opportunities for things not to be done correctly somewhere in the assembly. It gets even more complex when we consider that in order to use a vapor retarder, there might be an additional cementitious board above a steel deck.
This piece is co-written by Jennifer Keegan, AAIA. The headaches of Cold Storage facility operations extend beyond making sure the ice cream doesn't melt. Owners and Operators are regularly challenged with:
With the misinformation swirling around the topic of moisture in concrete roof decks, it can be difficult to know the right approach to take to mitigate risk. Are roof failures due to moisture in concrete primarily found in lightweight concrete decks? Do vented decks alleviate moisture in concrete by facilitating downward drying? Is 28 days the right amount of time to let a new concrete deck cure? Are admixtures and MVRA's (Moisture Vapor Reduction Additives) effective in mitigating concerns around moisture in concrete roof decks? Are vapor retarders the answer? What about vented base sheets? What adhesives and insulation and cover board facers are appropriate to use in these roof assemblies?
What are the key material properties?In a previous article the use of thermal inertia to slow down heat flux through a roof assembly was discussed. In buildings where air conditioning costs dominate and heating use is relatively low, higher thermal inertia assemblies can potentially improve energy efficiency. This is particularly the case of buildings such as offices that are only occupied during daylight hours. Thermal inertia could delay the transmission of heat into a building towards the end of the day, increasing thermal comfort and allowing facility managers to reduce cooling during the day.

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