Prefinished Aluminum Fashing Over Roof Membrane

For slate roof systems nrca recommends.

Prefinished aluminum fashing over roof membrane. Fold the soft metal flashing down tight to the bowl to prevent lateral water movement. Selection and installation of peel and stick flashing membranes used on building exteriors. See product data sheet. Barrier over flashing flexible membrane flashing over vps vapor barrier sheathing 1 1 2 eifs insulation board 5 8 gypsum board u n o.

Then install a non corrosive metal valley flashing of 24 minimum width. Lap successive sheets of metal flashing a minimum of 12 inches and seal laps. 0 016 of an inch for copper coated stainless steel. Wood blocking site paving slope away from.

The third step in the procedure for installing membrane flashing on roof penetrations is to open the drain. Install the strainer cap. Or 16 ounces for copper or lead coated copper. Roof systems nrca recommends valley metal be a minimum of 26 gauge for galvanized prefinished galvanized galvalume or stain less steel.

After the roof has been completed open the drain by hammering the soft metal flashing down into the bowl. Waterproofing layer of parapro 123 flashing system. 0 032 of an inch for aluminum or prefinished aluminum. Pmma based flashing resin available in winter and summer grades.

This article describes the selection and installation of peel and stick flashing membranes used on building exteriors to seal housewrap joints and to seal against air or water leaks around windows doors or other openings. Plywood with vps vapor barrier eifs reinforcing mesh eifs finish coat return at end of eifs metal stud framing double up vps vapor barrier over flashing pre finished break metal. Waterproofing layer of parapro roof membrane system. The quality and type of underlayments used on the project in the long term will affect the overall performance of the roof.

Selecting the right underlayments for a lifetime metal roof should be a primary concern for anyone thinking about specifying or choosing to install a metal roof on their home. Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic. Peel and stick flashing tape. Parapro roof membrane resin white pmma based roof resin available in winter and summer grades.

Duro last has been successful since the beginning by providing our customers with unmatched service and expertise in the roofing industry. Install an underlayment centered in the roof valley. See product data sheet. Offers over three decades of proven pvc roof system performance with billions of square feet of membrane installed across north america.

When this is not possible choose a second metal that is not likely to lead to galvanic corrosion or use a physical barrier to separate the two metals.