How To Blend A Roof Extension Shingles

How to remove old asphalt shingles before putting on a new roof.

How to blend a roof extension shingles.

Removing asphalt shingles is a big job and you might be temped simply to lay the new roof over the old one. Shingle the addition roof letting the new shingles fold through the valley center and onto the old roof deck by at least 1 ft. Replace missing or worn out shingles by carefully removing nails and fasteners sliding a new same sized shingle into place and nailing it down. Re lay the shingles you removed from the existing roof.

Just lay out three rows next to the old about 6 wide and rearrange them until they blend. Mark this point of the. Divide that number by the length of the tabs. Just site along the.

Cover each nail with roofing cement to prevent water penetration and weight the shingle down overnight to ensure a tight seal. Usually the original was whole then half or it could be quarter half and full. This latest project was in early december in lambeth ontario for a residential home that had an existing sloped or shingled roof that needed to tie into a ne. Lift the underlayment out of the way and then lay a 3 ft wide roll of waterproof shingle underlayment in the valley.

If it comes out to an odd number like 7 5 adjust the spacing to make it 8 rows. String the line along the top of the frame until it meets the shingle roof. Measure your roof from the bottom to the top of your porch roof plus one row your last shingles will slide under your home s shingles.