Start at one end and lay one board on the rafters.
How to frame a lean to roof.
Place the starting panel onto one edge of the roof.
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Osb board comes in 4 foot by 8 foot sheets.
For the final step install the trim of your choice as a cover against the side structure.
Screw it in with a drill.
The side of the panel that has a slightly flat side is to place on the roof.
Screw it in with a drill and.
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Use a nail gun to.
Use right size of rafters and headers.
Leave the braces on until you build the frame for the lean to roof.
Use a circular saw to cut the top of the posts.
Place the rib inside closure inside the groove both overhangs will have this.
Space rafters either 16 o c.
Use chalk line to make the top of the posts so they are perfectly level one with another.
For shingles or 24 o c.
Next measure out a choice of your roofing material and place it over the base roof structure.
Design lean to roof per your local building codes.
The other side is for overlapping the panel.
After the shed roof framing is complete finish the lean to along with any part of the existing roof from which you ve removed shingles with new shingles to blend the lean to into the old roof.