Roofing Shingles 2 Layers On Edges

Roofing second layer of shingles roofing.

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. Note the 2 lb ft3 spray polyurethane foam enhancing the air seal around the extended rafters. Don t be afraid to pay up to 100 for a well documented report with photos showing what they found. Cut the final roof cap shingle in half trimming off the unfinished side of the shingle.

This project guide is a combination of those two articles and it covers replacing the existing roof decking installing underlayment and ice dam protection laying the first row laying shingles in the field flashing ridge shingles and vents and more. Slopes of 4 12 and above can use standard asphalt roofing applications. If you install the drip edge on top of the felt any condensation or water running down the roof surface between shingles and felt will run underneath the drip edge down the fascia and perhaps into. 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.

Gently lift up the shingles on the edge of the roof and locate the nails holding the existing drip edge onto. It can be done. Apply roof cap shingles along the peak of the roof overlapping the shingles on each side of the peak. Roof slopes between 2 12 and 4 12 require a double underlayment application in accordance with section r905 2 7.

Instead of one layer laminated or architectural shingles have two or more layers with three dimensional tabs of varying sizes. Apply the final shingle with two nails through the finished surface. 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. 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.

A couple of weeks ago we published a two part series showing how a local roofing contractor shingled a roof with architectural shingles. Once free slide the drip edge out and discard. This foam is applied over the top of the membrane that came down from the roof deck catching the wall control layers. 51 to 124 per roofing square shingles are priced per roofing square which is equal to 100 square feet.

Use a flat pry bar and hammer to pry the nails out of the drip edge gently.