Roofing Shingles 2 Layers On Edges

Roof slopes between 2 12 and 4 12 can use shingles but require roof application techniques to take into account a greater potential for ice dam water backup.

Roofing shingles 2 layers on edges.

Roofing second layer of shingles roofing. Note the 2 lb ft3 spray polyurethane foam enhancing the air seal around the extended rafters. That is the drip edge flashing is the first item installed onto the roof sheathing or atop old shingles in a multi layer shingle re roof job. Roof slopes between 2 12 and 4 12 require a double underlayment application in accordance with section r905 2 7.

Once free slide the drip edge out and discard. Cut the final roof cap shingle in half trimming off the unfinished side of the shingle. 51 to 124 per roofing square shingles are priced per roofing square which is equal to 100 square feet. Apply the final shingle with two nails through the finished surface.

Apply roof cap shingles along the peak of the roof overlapping the shingles on each side of the peak. Don t be afraid to pay up to 100 for a well documented report with photos showing what they found. Apply one nail in each side of each roof cap shingle. Use a flat pry bar and hammer to pry the nails out of the drip edge gently.

A couple of weeks ago we published a two part series showing how a local roofing contractor shingled a roof with architectural shingles. This foam is applied over the top of the membrane that came down from the roof deck catching the wall control layers. Get some other roofing companies minimum of 2 to inspect the roof and give you an assessment of the roof deck shingle condition and estimate to replace the roof deck shingles. Browse owens corning roofing shingles by color shingle lines price features wind resistance and or warranty to find the right roof for your home.

It can be done. Instead of one layer laminated or architectural shingles have two or more layers with three dimensional tabs of varying sizes. How to shingle over existing shingles and how to shingle a roof how to install roof shingles shingle layout lines h. Gently lift up the shingles on the edge of the roof and locate the nails holding the existing drip edge onto.

One of the keys to over roofing is to tie the air control layer of the roof assembly to the air control layer of the wall assembly.