Tying in to an existing gable roof tie into the end of an existing gable roof by removing existing facing boards wall siding and any other obstructions back to the first truss of the old roof.
How to attach a gable patio roof to an existing house.
Choose a roof pitch 3 12 and roof structure 2x6 this places the new roof on top of the existing roof.
Attach the rafters to the ledger boards and settle joists.
The ledger typically a 2 by 6 is usually designed to hold one end of the patio roof rafters.
You have to do it thoroughly so that the rafters sit flush on it.
Butt the first new truss against the old one.
Place the rafters on 24 centers attach them to the settle joists and beams toward the center.
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.
Step 4 position the rafters on top of the sill plate.
The ledger should be attached before the foundation is built for a deck patio roof posts and other structure.
Locating and mounting the ledger is normally a fairly easy process.
Determine the beam size.
If you work with wood projects regularly then you will own some of these tools already.
Work from the view back not from the house out.
After that to make it flush with the roof of the existing house cut the two outer rafters.
Make sure to check the vertical beam to ensure that the end rafters are placed securely.
Attach the rafters to the house with joist hangers which supported by ledger boards.
You will need nails nailer rafters planks utility knife roofing shingles screwdriver lag bolts utility knife wooden beams etc.
Calculate the sightline clearance height about 6 feet 2 inches in this case.
Attach a sill plate to the house between the two side supports of the porch.
8 inches in this case.
How to attach a patio roof to an existing house step 1.
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.
Make a cutting on one of the sides of the horizontal roof beam on an angle.
Gather the necessary tools.