An EPDM roof is a good choice for many commercial applications. It’s durable, resistant to heat and temperature changes, and easy to maintain and repair. There are several ways to apply EPDM roofing. One of the most popular choices for large flat roofs is fully adhered EPDM roofing systems. What does this entail?
Choosing EPDM Thickness Specs
There are several different thicknesses you can select. Generally speaking, the thicker the rubber membrane layer, the more durable and resistant the final roofing product. It’s common to see .060-inch non-reinforced EPDM sheets, but you can also select .045-inch non-reinforced EPDM for roofs that don’t get as much wear and tear. When you expect your roof to experience difficult weather conditions or any kind of foot traffic, it can be a smart choice to go with .060-inch polyester-reinforced EPDM sheets instead.
Because of the importance of choosing the right rubber membrane for long-lasting performance, you should always consult with a roofing professional before purchasing or ordering EPDM. There are many factors that can affect the EPDM your business requires, from roof location to manufacturing considerations.
Applying the Adhesive
Another reason it’s essential to work with a roofing contractor who has experience in EPDM roof options is that application of a fully adhered flat roof requires professional knowledge. A special bonding adhesive compatible with the EPDM layer selected must be used. The adhesive has to be applied correctly and at the right time.
EPDM sheets also have to align perfectly, providing at least a 3-inch overlap at all points. The splices require their own particular adhesive or seam tape to get a solid seal that keeps moisture out.
This isn’t something a handyman service or your own employees can handle. Not overlapping enough can let moisture into the underlying structure and cause water damage. Overlapping too much creates waves and bubbles and also wastes your materials.