Installing Metal Roofing Directly Over Ice And Water Shield

Peel back 300 600 mm 1 2 ft of release liner align membrane.

Installing metal roofing directly over ice and water shield.

Some suitable deck materials include plywood wood composition wood plank metal concrete and gypsum sheathing. Ice dams are formed by the continuous melting and freezing of snow due to heat escaping from the house or from a backup of frozen slush from the rain gutters the melted water flows under the snow and freezes as it reaches the unheated soffit area at the eaves thus. Cut the membrane into 3 5 m 10 15 ft lengths and re roll loosely. I am suggestion that they cover the entire roof with ice water shield.

I recently received a quote to install 3 polyiso foam lay ice and water shield over the entire roof and then install the berridge 24 gauge galvalume kynar 500 standing seam metal roof. My concern is attaching the metal to the roof without any decking directly below the metal. Learn how ice water shield tiger paw underlayment and gaf roof shingles are installed in this today s home remodeler episode with host stuart keith and an. High temperature hot roof construction ice shield metal roof underlayments water shield categories.

If the ice water shield goes down first the plywood is better protected. Articles education general metal roofing about mike gonet mike gonet is senior partner operations at classic metal roofs where he strives to provide a solid workplace for employees and an exceptional experience for clients in the way of service and product installation. If installed properly this reliable roofing underlayment can save homeowners 18 000 in reroofing costs. In terms of the i w shield it does need to be applied directly to the deck of the home and not to the felt.

There are several reasons for this. That being said a properly installed metal roof will be about 100x less likely to leak as a result of and ice damn than asphalt shingles. Prior to membrane application remove dust dirt loose nails and old roofing materials. Here s how proper installation of grace ice water shield the conventional method.

Install grace ice water shield roofing underlayment directly on a clean dry continuous structural deck. I ve been trying to convince them to install a mechanically seamed standing seam metal roof but they like the look of comp better. Not all roofing underlayments are the same. Our roofer is reluctant to install comp on a 3 5 12 pitch as the national roofing association says 4 12 or steeper only.

Ice dams are a serious issue for homeowners and roofing professionals in cold climates or even where occasional snow may fall. If ice ever backs up from a clogged gutter the ice can get under the drip edge and reach the plywood.