How to cut shingles off the edge of a roof in a straight line.
How to shingle under a close roof overhang.
The edge of a roof in professional vernacular is called the rake edge.
When you cut along the chalk line you should be making the shingles even and leaving a 1 2 inch overhang where the shingles extend beyond the edge.
Shingle manufacturers say to use a 1 4 to 3 8 inch shingle overhang over the eave where your roof ends.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Rather than cutting the shingle at the roof s edge.
Secure the horizontal flange to the roof.
Or whatever your local borg calls roofing tar in a caulk tube the alternative to only sticking them on is of course to stick the shingle up in then facenail it as high up as you can reach under the overhang then wetstick the nail heads.
Too much overhang and the shingles could blow off in high winds.
Finishing shingles installation under a tight overhang we just use wetstick.
Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across the roof.
Knowledgeable roofers will install shingles at just the right overhang for your roof type.
Every 5 inches make a new mark until you get to the rop of the roof.
The rake edge is the extreme edge of the roof on either side.
The edge of the shingles should hang over the edge of the roof between an inch and an inch and a half or between a half inch and three quarters of an inch if drip edge flashing is installed and in most cases it should be.
Handyman ian eltringham recommends leaving a 1 2 inch overlap between the edge of the roof and the shingle.
Too little can allow water to seep into rake or fascia boards.
We ve seen other references that suggest extending the shingles a bit more than the manufacturers suggest to compensate for wavy eaves but they do not indicate extending more than 1 inch over the eave.
Place the second step flashing piece over the end shingle in the first course by positioning it 143 mm 5 5 8 above the bottom edge of the exposed asphalt shingle.
Repeat this on both sides of the roof.