How To Install Roll Roofing Over Shingles. Use a cold chisel to remove chimney counterflashing. At this point, you’ll add the piece of roll roofing material that is 36 inches (1 meter) wide.
Start at one eave and work your way up, overlapping the panels as you go. An underlayment of felt roofing is optional. First, there should only be one existing roof in place.
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Nail The Step Flashing To The Wall Toward The Top Of The Flashing At The End That's Closer To The Peak, So The Next Step Flashing In Line Will Cover The Nail.
Leave the old valley flashing in place, and install new over it. Besides, roll roofing is easier to install on your roof. Embed both roofing pieces in cement.
Instead, The Roofers Arrange Them So They Lay Relatively Flat.
Do this on both sides of your roof and then install ridge cap shingles over top of the ridge. Prepare a valley between joined roofs by cutting a strip that is 18 inches wide and covers the entire length of the valley. Start at the left side of the ridge and nail the first shingle on the right side.
You Need To Leave The Bottom Loose To Install Shingle Underneath The Flashing.
This is what it looks like when you install a steel shingle roof system over an existing asphalt shingle roof. Venting—the eaves to vent the roof, holes are cut in the old roof above the soffit, which pulls air through the soffit vents underneath. Rolled roofing is less expensive per square foot, but shingles are.
Also Note That A New Fully Adhered Membrane Is Installed On The Original Roof Deck Replacing The One Installed 17 Years Ago Is Folded Down To.
An underlayment of felt roofing is optional. Remove all loose or protruding nails or fasteners At this point, you’ll add the piece of roll roofing material that is 36 inches (1 meter) wide.
Once The Material Is Up.
To install, line the valley with underlayment secured with roofing cement. Install roofing on both sides of a ridge and cut them so they butt closely together but do not overlap. The shingles will install over the flashing on the top and middle.