Installing Metal Roofing Directly Over Ice And Water Shield

Our roofer is reluctant to install comp on a 3 5 12 pitch as the national roofing association says 4 12 or steeper only.

Installing metal roofing directly over ice and water shield.

I ve been trying to convince them to install a mechanically seamed standing seam metal roof but they like the look of comp better. If ice ever backs up from a clogged gutter the ice can get under the drip edge and reach the plywood. 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. Not all roofing underlayments are the same.

Install grace ice water shield roofing underlayment directly on a clean dry continuous structural deck. My concern is attaching the metal to the roof without any decking directly below the metal. 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. Cut the membrane into 3 5 m 10 15 ft lengths and re roll loosely.

Peel back 300 600 mm 1 2 ft of release liner align membrane. Prior to membrane application remove dust dirt loose nails and old roofing materials. The ice and water shield is an amazing roofing product that was first introduced in the 1980s. 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.

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. Grace the manufacturer of ice water shield advises that its peel and stick membrane should be installed before the drip edge. 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. If you have a roof that you know to be older than 1980 it won t have this great product under the shingles.

Ice dams are a serious issue for homeowners and roofing professionals in cold climates or even where occasional snow may fall. 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. There are several reasons for this. If installed properly this reliable roofing underlayment can save homeowners 18 000 in reroofing costs.

If the ice water shield goes down first the plywood is better protected. I am suggestion that they cover the entire roof with ice water shield.