RoofViews

Toitures commerciales

Utilisation de membranes de toiture autoadhésives et plus de conseils pour vous faire gagner du temps lors de la pose de toitures

By Karen L Edwards

30 juin 2022

Roofing contractors reviewing job plans.

La main d’œuvre étant limité, trouver des solutions qui font gagner du temps comme l’installation de toitures autoadhésives se trouve en haut de la liste de choses à faire de nombreux entrepreneurs. Gagner du temps ne veut pas dire compromettre la qualité : les entrepreneurs travaillent sans cesse pour offrir des solutions qui aident à améliorer l’efficacité d’une installation qui continue d’être de première classe.

Thermoplastic Polyolefin (TPO) is one of the fastest-growing single-ply roofing solutions. For instance, GAF EverGuard® TPO offers excellent protection in an affordable roofing system, making it one of the most popular choices for building owners. To help contractors save time while still delivering a high quality installation, GAF offers several time-saving tools.

1. Quick Spray Adhesive

Using spray adhesive means you can put away the roller—and time-consuming methods of applying bonding adhesive. EverGuard TPO Quick Spray Adhesive is a solvent-based adhesive that allows installers to quickly bond TPO membrane to a variety of substrates. In addition, when used properly, a Quick Spray canister can cover installation of approximately 10 squares, compared to the approximately 3 squares of installation a bucket can cover. (As with all adhesives, porosity of the substrate can impact coverage rates.) Simply spray the adhesive uniformly onto the substrate and the back of the membrane, then apply pressure with a broom or weighted roller to ensure adhesion and heat weld the seams.

2. Prefabricated Accessories

It can take a significant amount of time, experience and know-how to properly measure, cut and hand weld details. GAF has prefabricated accessories available for most details of a rooftop, offering a full line of vent and pipe boots, tube wraps, pourable sealer pockets, and universal corners that can be cut to accommodate either an inside or outside corner. You can save time and ensure consistent quality in all the flashings by choosing these ready-to-use accessories. These accessories can help contractors boost their productivity.

3. Self-Adhered TPO

You can eliminate the need to apply adhesive altogether when you choose a self-adhered roof. GAF's EverGuard® SA TPO comes with the adhesive already applied on the back of the membrane. Once positioned, the crew just folds the membrane sheet back, removes the release liner to expose the factory-applied adhesive, lays the membrane in place and brooms in the sheet before using a weighted roller. Then the crew heat welds the seams.

4. Extra-Wide Rolls

When self-adhered TPO isn't an option, roofers can make their installation time more efficient by using rolls of membrane that are wider than the standard 10 feet. GAF offers 12-foot-wide rolls of membrane that are ideal for jobs with large, open rooftop areas. Get more coverage in less time, and 20 % wider rolls means fewer seams to weld.

5. Learn From the Experts

GAF offers a robust video library featuring roofing veterans Dave Scott and Wally Brown. The Roofing it Right series features how-to videos, including a Self-Adhered Membrane Product Overview. These informative and educational videos cover topics as diverse as roof inspections, core cuts, tear-offs, and installations.

Contractors can both provide quality installations and save time on the job by taking advantage of these innovative solutions. You can also reach out to your GAF Territory Manager for additional information or to discuss your specific project needs.

About the Author

Karen est une rédactrice indépendante pour le secteur de la construction et sa passion pour les toitures l'a motivée au cours de ses 20 ans de travail dans le secteur.

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