Roll Roof Selvedge Edge Overlap

Continue to stagger the rows as you work with a two inch overlap on the horizontal seams and a six inch overlap on the vertical seams.

Roll roof selvedge edge overlap.

Place the top edge of the roofing along the chalk line. Embed both roofing pieces in cement. 2 or 3 varies by manufacturer or 16 12 or 9 exposure for 2 3 or 4 ply roofs respectively. Sbs roll roofing overlap width is commonly 3 4 or 3 6 varying by product and also referred to as the selvage edge width.

Apply cement at all of the seams and nail down all sheets as you progress leaving room for about one inch of overhang on each side. For added protection add a boot flashing. Epdm rubber roof pipe pocket 6 price. E z white roll roofing self stick 100 sq ft price.

This forms a 19 inch wide selvedge for overlapping purposes. 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. Roll out and cut roll roofing to cover the length of the roof. To seal a plumbing vent spread roofing cement around the pipe.

Fasten the upper edge with nails so that the next course will overlap them a mini mum of 1. Lift the lower edge of the first course and cover the edge strips with lap cement. Install a blue tarp on a roof how to add flashing to a chimney. 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.

Rolls of rubberized asphalt underlayment may come with a selvedge edge along one side of the roll. The selvedge edge is designed to create a strong watertight seal along the edges where rolls overlap. Cut a hole in a piece of roofing about 2 feet wide and slip it over the pipe. 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.

This technique will also work with full width rolls if you cannot find selvage edge roll roofing in your local store. This should give you a 1 inch overhang on the eaves including the top edge of. In cold weather turn the course back carefully to avoid. Roll 90lb black roofing 100 sq ft price.

The piece should overlap the lower course by at least 4 inches. Cut a hole in the roll roofing and slip it over as well. The selvedge edge should always be along the top edge when the underlayment is installed in courses across a roof.