Best Way To Build A Lean To Roof

Cut back the roofing on the existing building if needed so that the new roof can fit correctly beneath it.

Best way to build a lean to roof. The 2 4 rafters would be sheathed with 19 32 tongue and groove osb and then i d use asphalt shingles to finish the roof. Measure the width of the outside wall and cut the board with a circular saw to the same length. Make a ledger board to fasten to the existing wall and support the upper end of the lean to roof. Space rafters either 16 o c.

Screw it in with a drill and nails. Check if the posts are plumb and if the support beams are horizontal before locking them into place with screws or bolts. Use right size of rafters and headers. For the final step install the trim of your choice as a cover against the side structure.

For shingles or 24 o c. Using bolts washers and nuts or placing an additional 6 inch piece of 2x4 below the 2x6 at each post as a ledger board would help support the weight better. It will be easier to build this in place on top of the shed but if you can t build it on the ground then put into place before adding the sheathing. Made from this plan.

Use a 2 by 4 inch board for a short roof up to about 8 feet a 2 by 6 for a longer one. I am asking because after a few snow seasons with all the snow weighing down on the roof edge the nails could pull out of the 2x6 and 4x4 post and your roof could give way. When attaching ledger board to an existing wall install proper flashing when required. It is a good idea to build a lean to roof that will give a good look to the exterior area of your house and also help utilize this space.

When all the 2 4 s are cut that need to be build the roof framing according to your blueprint. The lean to s roofing will need to fit fairly snugly underneath the existing roof to prevent rain from blowing into your addition. The sloped roof of the lean to shed will allow water and snow to run off to one side of the roof without soaking into the wood. Design lean to roof per your local building codes.

Typically a lean to roof will lay at a different pitch than your existing roof. A lean to construction will be easier to build as compared to a gable roof carport the roof will direct the water in only one direction so you could build it close to the property line.