Installing Firestone Epdm Over Existing Roof

The epdm membrane is then sandwiched between this a bead of mastic and the front trim which is finally nailed with stainless steel plastic topped pins to finish.

Installing firestone epdm over existing roof.

Fullforce epdm fullforce epdm is the only epdm membrane to feature a factory applied adhesive across its entire surface. Can i install epdm membrane directly over an existing roof. Without the need for seam tape adhesives or waiting it installs 4 6x faster than standard epdm membrane including seams. We are certified by genflex sister company to firestone.

Roof edges pdf wall terminations pdf membrane repair pdf miscellaneous pdf for a complete overview of the installation specifications consult the epdm technical guidelines chapter 3 pdf. Epdm should be bonded over 5 8 plywood 5 8 osb board or polyisocyanurate board with a fiberglass backing. The specification provided to us stated that we were to fully adhere epdm over the existing epdm after washing. When you go fullforce you can get more squares installed in a day.

Then the rest phase begins which allows the rubber to expand naturally. Each installation phase is illustrated in the above manual with one or more 3 dimensional drawings. Rot if the existing roof deck and supporting timbers are rotten these will need to be removed and replaced. Osb3 or exterior grade plywood are both good deck materials for bonding the new.

The two part drip trim consisting of a back plate that is nailed flush with the top of the roof deck. After properly resting the epdm sheet is ready for installation. The membrane needs to be completely unfurled and laid flat over the roof surface. On a warm day resting can take approximately 30 minutes.

We were hired by firestone due to our certification with genflex to repair a leaking roof. You can install epdm membrane over an existing roof only if a new layer of 5 8 plywood 5 8 osb board or polyisocyanurate board with a fiberglass backing is used as a barrier to protect the epdm.