How To Build A Lean To Roof On Existing Roof

Existing roof existing roof 10.

How to build a lean to roof on existing roof.

Determine where the lean to will be attached to the existing building. Add roof existing deck add roof existing deck 12. Front wall trims lean to addition. Attaching below the ridge.

When attaching ledger board to an existing wall install proper flashing when required. In the case of a lean to roof over an addition the existing rafters will have to be cut away to accommodate the addition and the shed roof will require support where. 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. For shingles or 24 o c.

Attaching patio cover existing roof attaching patio cover existing roof 14. Add porch roof existing build metal over deck add porch roof existing build metal over deck 11. The preferred spot would place the lean to under the overhanging roof of the existing building. The other side is for overlapping the panel.

Drive the post in and fill the hole with concrete to set it in place. Attach patio roof. Space rafters either 16 o c. Place the starting panel onto one edge of the roof.

Use right size of rafters and headers. The lean to s roofing will need to fit fairly snugly underneath the existing roof to prevent rain from blowing into your addition. Place the rib inside closure inside the groove both overhangs will have this. The side of the panel that has a slightly flat side is to place on the roof.

Fit the trims to the sides of the lean to roof and lock them into place with 6d nails. Attach patio roof existing house attach patio roof existing house 13. Cut back the roofing on the existing building if needed so that the new roof can fit correctly beneath it. 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. Use 1 8 lumber for the side roof. From this existing post measure 3 feet distance in the same line dig a hole and drive the second post in.