The industry standard specification for flashing height is 8 inches. It’s an important safeguard against water backing up on the...
All posts by Don Kilcoyne
Cutting the edges of a reinforced membrane, whether on the roof or in the factory, exposes the reinforcement scrim to...
One of the most notorious leak points on a roof is at the T-joint, where multiple layers of membrane come...
Is there anything more frustrating than being called back to a completed job because an inspector has found welds that...
Experienced thermoplastic membrane welders know how important it is to get angle changes right. If the flashing isn’t tight at...
When installing TPO or PVC, the corners and perimeters of a building require more fasteners than the field due to...
Robotic welders are a terrific way to ensure consistent, durable welds. But they do leave occasional unwelded voids where the...
When patching a single-ply membrane, whether it’s to reinforce or repair, step one should always be cleaning the surface. Patches...
When you’re working on a single-ply roof, do you probe your seams every day, or wait until the job is...
“When one door closes, another opens; but we often look so long and so regretfully upon the closed door that we do not...
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Dean - yes, we do. The exact answer depends on the system you are wanting to install. So, for an asphaltic approach, we have GAF […]
Good morning and thank you for this post Regarding vapor retarders for use on concrete roof decks, does GAF have a specific material or materials specifically