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.
How to shingle under a close roof overhang.
The edge of the shingles should hang over a 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.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Draw a blue chalk line at this line.
Too much overhang and the shingles could blow off in high winds.
The edge of a roof in professional vernacular is called the rake edge.
Handyman ian eltringham recommends leaving a 1 2 inch overlap between the edge of the roof and the shingle.
Shingle manufacturers say to use a 1 4 to 3 8 inch shingle overhang over the eave where your roof ends.
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.
Make sure that the tab of the shingle in the second course will cover it completely.
Repeat this on both sides of the roof.
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.
The rake edge is the extreme edge of the roof on either side.
Too little can allow water to seep into rake or fascia boards.
Rather than cutting the shingle at the roof s edge.
Knowledgeable roofers will install shingles at just the right overhang for your roof type.
How to cut shingles off the edge of a roof in a straight line.
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.
Continue to chalk additional guidelines based on the width of the shingle through at least four courses rows across the roof.
Secure the horizontal flange to the roof.