Determine how high it must be to provide an adequate slope to the roof.
How to attach roof ledger board.
Do not attach the header directly to a house cantilever.
Properly installing a ledger board for your deck is one of the most important structural components of building a safe and strong deck.
Place the rafters on 24 centers attach them to the settle joists and beams toward the center.
If necessary use a sliding bevel to determine angles needed where the rafters will meet the ledger board.
Attach the rafters to the ledger boards and settle joists.
Attach 2x6 rafters to the house with joist hangers and or supported by the ledger board.
Make sure to check the vertical beam to ensure that the end rafters are placed securely.
The lags should pass through by at least 1 2 on the back side of the band board.
Rafters are placed on 24 centers and attached to the beams and settle joists are attached as needed image 1.
If it is impossible to attach the ledger to a floor joist then fasten the ledger to wall studs which are generally located on 16 inch or sometimes 24 inch centers and doubled up around doors windows and other openings.
Flash and bolt the ledger board in place to the house wall.
Locate a position for a header or ledger board.
Make the outline large enough to allow space for the.
Attach the rafters to the house with joist hangers which supported by ledger boards.
Find the wall studs or roof trusses that will have to support the ledger.
In this instance minimum 1 2 lags are staggered along the length of the board.
Use a speed square to mark and cut your rafter angle to the roof pitch.
This board will support the rafters.
Temporarily nail or brace the ledger in place positioned and leveled at the desired height.
Make it the full width of the porch or slightly wider depending on your porch design.
The rafter pitch angle.
Locate the rim joist and mark an outline on the siding where you want to position the ledger board using a tape measure pencil and chalk line.