Installing Polymat Under Surface Gas Pipes | Roofing it Right with Dave & Wally by GAF
In our Mod-Bit recover project, Dave and Wally show how to address a detail of gas pipes running across the surface of the roof deck. In this example, they are using polymat under the pipes and blocks as a separator between the existing mod-bit roof and smooth TPO membrane.
GAF’s Roofing It Right series “Mod-Bit Recover” features Dave & Wally walking us start to finish through a project to recover an existing Mod-Bit system with several options for smooth and fleece-back TPO, separation layers, mechanically attached, heat induction welding and adhered fastening, and a range of options for addressing flashing details.
View the Full Mod-Bit Recover Playlist: https://www.youtube.com/playlist?list=PL57CUjbCtZ607yV6KeVBE7cuX01VJYt1b
Mod-Bit Recover Videos:
Mod-Bit Recover Project Overview | Roofing it Right with Dave & Wally by GAF: https://youtu.be/hIrUHbbc2yc
Assessing the Roof for a Recover | Roofing it Right with Dave & Wally by GAF: https://youtu.be/0zyGE5vRP6E
Preparing the Roof for a Recover | Roofing it Right with Dave & Wally by GAF: https://youtu.be/fg94H1AG33c
The Importance of Creating a Foreman’s Folder | Roofing it Right with Dave & Wally by GAF: https://youtu.be/G0A_Maviy3o
Recover Options: Smooth TPO with Cover Board | Roofing it Right with Dave & Wally by GAF: https://youtu.be/ZimsZmyZzWQ
Recover Options: Smooth TPO with Polymat Separator | Roofing it Right with Dave & Wally by GAF: https://youtu.be/O_Ee0HdkvUo
Installing Polymat Under Surface Gas Pipes | Roofing it Right with Dave & Wally by GAF: https://youtu.be/Ii-nVWxxL_k
Recover Options: Fleeceback TPO, Mechanically Attached | Roofing it Right with Dave & Wally by GAF: https://youtu.be/G4lh44h3wNI
Installing Wall Flashings with QuickSpray Adhesive | Roofing it Right with Dave & Wally by GAF: https://youtu.be/hz2rUaP9Ffg
Recover Options: Fleeceback TPO with LRF Adhesive | Roofing it Right with Dave & Wally by GAF: https://youtu.be/c7PfXW4Wsp8
Installing Wall Flashings with LRF Adhesive | Roofing it Right with Dave & Wally by GAF: https://youtu.be/89xJv2peUZ4
Flashings Curbs with the X-Cut Method | Roofing it Right with Dave & Wally by GAF: https://youtu.be/dc9hoIVMQeo
Installing Canted Curb Flashings | Roofing it Right with Dave & Wally by GAF: https://youtu.be/_qOorZA54Jg
Recap for Mod-Bit Recover Project | Roofing it Right with Dave & Wally by GAF: https://youtu.be/yK8nhfsc09k
Promo for Mod-Bit Recover Project | Roofing it Right with Dave & Wally by GAF: https://youtu.be/gyjVMI3iH7U
Pro-Tip: 8 Inch Minimum Flashing | Roofing it Right with Dave & Wally by GAF: https://youtu.be/eJITBEoiMmM
Pro-Tip: X-Cut Method for Wrapping Curbs | Roofing it Right with Dave & Wally by GAF: https://youtu.be/9YftWlq7YsU
Pro-Tip: Moisture Tests | Roofing it Right with Dave & Wally by GAF: https://youtu.be/MzktfaJj4jU
Pro-Tip: Fastener Pull-Out Tests | Roofing it Right with Dave & Wally by GAF: https://youtu.be/YYnoy0WDokE
Pro-Tip: Shovel Tests | Roofing it Right with Dave & Wally by GAF: https://youtu.be/sNK9qM17rK0
Pro-Tip: Foreman Folder | Roofing it Right with Dave & Wally by GAF: https://youtu.be/h1G0OovqW2w
Roofing it Right with Dave & Wally by GAF chronicles the roofing lessons, tips and tricks taught by two veteran roofers. They each have more than 35 years of experience in low slope roofing and now share their expertise throughout the U.S. and Canada through roofing detail installations and installations of commercial roofing assemblies, troubleshooting scenarios, roof inspections. Dave and Wally also assist the GAF Marketing and R&D teams in the development and testing of new products and installation methods, and assist in the documentation and publication of specification manuals. Watch more Dave & Wally at https://www.gaf.com/en-us/for-professionals/dave-and-wally-video-series
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