When attaching ledger board to an existing wall install proper flashing when required.
How to build a lean to roof on existing roof.
The other side is for overlapping the panel.
For shingles or 24 o c.
The preferred spot would place the lean to under the overhanging roof of the existing building.
Any water runoff will flow off of the main roof and hit the lean to at an angle to prevent pooling and flooding in the lean to.
Use 1 8 lumber for the side roof.
Design lean to roof per your local building codes.
Fit the trims to the sides of the lean to roof and lock them into place with 6d nails.
Make angle cuts to the trims with a miter saw.
Determine where the lean to will be attached to the existing building.
Attach patio roof.
Attaching patio cover existing roof attaching patio cover existing roof 14.
The lean to s roofing will need to fit fairly snugly underneath the existing roof to prevent rain from blowing into your addition.
From this existing post measure 3 feet distance in the same line dig a hole and drive the second post in.
Measure 8 feet from the existing structure towards the outer direction and dig a deep hole to drive the post in.
Mark the area where you want the structure.
Add porch roof existing build metal over deck add porch roof existing build metal over deck 11.
Space rafters either 16 o c.
Front wall trims lean to addition.
Place the rib inside closure inside the groove both overhangs will have this.
Typically a lean to roof will lay at a different pitch than your existing roof.
The side of the panel that has a slightly flat side is to place on the roof.
Cut back the roofing on the existing building if needed so that the new roof can fit correctly beneath it.
Attach patio roof existing house attach patio roof existing house 13.
Add roof existing deck add roof existing deck 12.
Use right size of rafters and headers.
Existing roof existing roof 10.
Attaching below the ridge.