Make it the full width of the porch or slightly wider depending on your porch design.
Roof ledger board flashing.
Oatey retro master roof flashing 1 4 in to 4 in x 8 in epdm rubber vent and pipe flashing.
If you are tying the roof directly to a house wall you can install a ledger board with flashing and install rafter ties to attach the rafters at the appropriate angles or use engineered trusses.
Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides.
Item 3807 model 5504900120.
A ledger relies on the fasteners and strength of the wood ledger board and rim board of the house to carry the deck live and dead loads.
On site the first board would be positioned within 1 2 from the wall flashing.
Velux c01 c04 c06 shingle roof aluminum deck mount skylight flashing kit.
For pricing and availability.
Window and door cap 1 25 in x 120 in x 1 56 in aluminum z flashing.
The other half is flashing the ledger to prevent water from getting behind it which would lead to decay of the wall sheathing.
Overlap the flashing in the corner at an inside corner slide the first piece in so its bottom lip slips in between the two boards.
You have to make sure that you place the board in proper height since it will determine the level of your patio roof.
The deck boards have been depicted with a gap between the first board and the house only to emphasize flashing overlapping the ledger.
The opposite side of the porch roof will be supported by a header beam that is installed parallel to the house on top of 6x6 support posts.
For a one story house you just need to attach the ledger board right under the house s eave.
Flashing a patio roof ledger.
Then slip flashing behind the siding covering the top edge of the ledger.
The ledger board is attached in a horizontal position.
Start by making an outline on the siding where you want to position the ledger board.
Where the ledger is longer than the flashing overlap the flashing pieces by at least 4.
Model edl c06 0000b.
The lags should pass through by at least 1 2 on the back side of the band board.
Find the wall studs or roof trusses that will have to support the ledger.
Determine how high it must be to provide an adequate slope to the roof.