After the roof has been completed open the drain by hammering the soft metal flashing down into the bowl.
Prefinished aluminum fashing over roof membrane.
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.
Apply an approximately 3 inch width of asphalt roofing cement along the sides of flashing and embed shingles in mastic.
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.
Offers over three decades of proven pvc roof system performance with billions of square feet of membrane installed across north america.
0 032 of an inch for aluminum or prefinished aluminum.
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.
Pmma based flashing resin available in winter and summer grades.
Or 16 ounces for copper or lead coated copper.
Use aluminum flashing and fasteners in contact with aluminum copper flashing and copper nails with copper roofing gutters etc.
Waterproofing layer of parapro 123 flashing system.
Barrier over flashing flexible membrane flashing over vps vapor barrier sheathing 1 1 2 eifs insulation board 5 8 gypsum board u n o.
Install the strainer cap.
Then install a non corrosive metal valley flashing of 24 minimum width.
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.
For slate roof systems nrca recommends.
Batt insulation 5 8 f r t.
Flashing reglet extend membrane up cmu 8 min roof see plan pre finished break metal counterflashing over membrane roofing termination pre finished metal flashing keyed into cmu concrete masonry unit with vertical joint reinforcing see structural slope tapered insulation cricket continuous p t.
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.
Roof systems nrca recommends valley metal be a minimum of 26 gauge for galvanized prefinished galvanized galvalume or stain less steel.
Peel and stick flashing tape.
See product data sheet.
Lap successive sheets of metal flashing a minimum of 12 inches and seal laps.
Install an underlayment centered in the roof valley.
Parapro roof membrane resin white pmma based roof resin available in winter and summer grades.
See product data sheet.
Duro last has been successful since the beginning by providing our customers with unmatched service and expertise in the roofing industry.
The third step in the procedure for installing membrane flashing on roof penetrations is to open the drain.
