Place the top edge of the roofing along the chalk line.
Roll roof selvedge edge overlap.
Sbs roll roofing overlap width is commonly 3 4 or 3 6 varying by product and also referred to as the selvage edge width.
The selvedge edge is designed to create a strong watertight seal along the edges where rolls overlap.
Roll out and cut roll roofing to cover the length of the roof.
Cut a hole in the roll roofing and slip it over as well.
Width strip of roll roofing so that its lower edge and ends are flush with the edge strips at the eaves and rakes.
For added protection add a boot flashing.
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This should give you a 1 inch overhang on the eaves including the top edge of.
This forms a 19 inch wide selvedge for overlapping purposes.
Roll roofing overlap horizontal choose the overlap width according to the number of plies of roof to be installed.
Selvage edge roofing is installed the same way as full width roll roofing except that each course overlaps the previous course 19 inches instead of 4.
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Rolls of rubberized asphalt underlayment may come with a selvedge edge along one side of the roll.
The selvedge edge should always be along the top edge when the underlayment is installed in courses across a roof.
Cut a hole in a piece of roofing about 2 feet wide and slip it over the pipe.
Fasten the upper edge with nails so that the next course will overlap them a mini mum of 1.
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2 or 3 varies by manufacturer or 16 12 or 9 exposure for 2 3 or 4 ply roofs respectively.
Tamko 19 selvedge edge roll roofing is constructed from tamko s organic mat impregnated with hot asphaltic saturant then coated on both sides with weathering grade asphalt and surfaced with mineral granules in a 17 wide path starting at the edge of the sheet towards the center.
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The piece should overlap the lower course by at least 4 inches.
In cold weather turn the course back carefully to avoid.
This technique will also work with full width rolls if you cannot find selvage edge roll roofing in your local store.
To seal a plumbing vent spread roofing cement around the pipe.
Lift the lower edge of the first course and cover the edge strips with lap cement.
The ends of each row of roofing are folded back to allow room to apply a 6 inch band of roofing cement before they are nailed into place every three inches along the edge of the overlap.
