Mark 12 inches up on the roof for the first course of shingles then mark every 5 inches all the way up the roof to set your reveal.
How to mark on roof.
Use the chalk line to snap a straight line vertically every 6 inches.
Repeat this on both sides of the roof.
Fix stair gauges on the framing square to mark the pitch.
In today s video we go over the basic techniques to installing drip edge and rake edge on your roof.
This old house 2 010 302 views.
Use your chalk and tape measure to mark about 12 inches up on the roof for the first set of shingles.
Use a straightedge to help you transfer the angle you marked on the siding.
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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.
Measure the bottom piece of siding to the proper length which is the length of the wall to the roof line minus 2 inches.
Using the chalk line snap a straight line on each 5 inch increment.
Use the chalk line to snap a straight line vertically every 6 inches.
Every 5 inches make a new mark until you get to the rop of the roof.