8 inches in this case.
How to attach a gable patio roof to an existing house.
Attach a sill plate to the house between the two side supports of the porch.
Butt the first new truss against the old one.
Step 4 position the rafters on top of the sill plate.
You have to do it thoroughly so that the rafters sit flush on it.
You will need nails nailer rafters planks utility knife roofing shingles screwdriver lag bolts utility knife wooden beams etc.
Place the rafters on 24 centers attach them to the settle joists and beams toward the center.
Make a cutting on one of the sides of the horizontal roof beam on an angle.
If you work with wood projects regularly then you will own some of these tools already.
A house attached patio roof takes advantage of the house s structure by supporting one end of the roof on a ledger mounted horizontally to the house.
Attach the horizontal beam by using a nail gun.
Make sure to check the vertical beam to ensure that the end rafters are placed securely.
After that to make it flush with the roof of the existing house cut the two outer rafters.
How to attach a patio roof to an existing house step 1.
Work from the view back not from the house out.
Locating and mounting the ledger is normally a fairly easy process.
Attach the rafters to the house with joist hangers which supported by ledger boards.
Then mount new trusses on the new addition walls.
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Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.
The ledger typically a 2 by 6 is usually designed to hold one end of the patio roof rafters.
Gather the necessary tools.
Attach the rafters to the ledger boards and settle joists.
Determine the beam size.
The sill plate or piece of wood that secures the supports to the roof should sit flush to the top edges of the roof support columns.