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How to mark on roof.
Measure the bottom piece of siding to the proper length which is the length of the wall to the roof line minus 2 inches.
Use a straightedge to help you transfer the angle you marked on the siding.
This old house 2 010 302 views.
Do this on both sides of the roof.
So if the pitch of your roof is 7 12 place one stair gauge on the vertical part of the framing square the tongue at the 7 inches 18 cm mark and place one stair gauge on the horizontal part of the framing square the body at the 12 inches 30 cm mark.
Use the chalk line to snap a straight line vertically every 6 inches.
Use the chalk line to snap a straight line vertically every 6 inches.
Using the chalk line snap a straight line on each 5 inch increment.
Fix stair gauges on the framing square to mark the pitch.
Repeat this on both sides of the roof.
How to install roof shingles ask this old house duration.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Mark and install a three tab shed garage or house roof part 1 duration.