This structure is heavy duty and it features a roof with a 11 5 degree slope but please follow the building codes and hire a professional contractor if you don t have the right skills to undertake the project.
How to attach a lean to roof to an existing roof.
Sep 09 2016 how to attach a patio roof an existing house oliviahome co.
To attach a wooden nailer to a metal sided building use a self drilling screw with sufficient threads to hold the nailer tightly.
Mark the area where you want the structure.
When attaching ledger board to an existing wall install proper flashing when required.
Measure 8 feet from the existing structure towards the outer direction and dig a deep hole to drive the post in.
If you need to attach a simple lean to roof to a shed or on already existing building i ve got you covered with step by step plans.
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.
From this existing post measure 3 feet distance in the same line dig a hole and drive the second post in.
For shingles or 24 o c.
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You have to do it thoroughly so that the rafters sit flush on it.
Shed roofs are typically low slope usually with a rise of 4 inches per foot or less.
How to attach a patio roof an existing house deck home.
How to attach a patio roof an existing house oliviahome co.
Attach the horizontal beam by using a nail gun.
Determine where the lean to will be attached to the existing building.
Make a cutting on one of the sides of the horizontal roof beam on an angle.
If possible nail through the siding into the building s framing members.
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.
Space rafters either 16 o c.
The preferred spot would place the lean to under the overhanging roof of the existing building.
After that to make it flush with the roof of the existing house cut the two outer rafters.
Use right size of rafters and headers.
Fasten the nailer to the side of your existing building where you will attach the upper end of your rafters.