How To Attach A Ledger Board For A Porch Roof
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Deck ledger board removing the siding for the ledger board.
How to attach a ledger board for a porch roof. Rafters are placed on 24 centers and attached to the beams and settle joists are attached as needed image 1. To do this method you will have the back channel and fascia strengthened by reinforcing two rafters inside the roof. Attach 2x6 rafters to the house with joist hangers and or supported by the ledger board. Fix the back channel to the fascia boards underneath the gutter directly.
Do not attach the header directly to a house cantilever. Attach the metal joist hangers to the rafters. Locate a position for a header or ledger board. This board will support the rafters.
Use a speed square to mark and cut your rafter angle to the roof pitch. Temporarily nail or brace the ledger in place positioned and leveled at the desired height. Determine how high it must be to provide an adequate slope to the roof. Attach the header to the support post next to the house.
Place the rafters on 24 centers attach them to the settle joists and beams toward the center. In this instance minimum 1 2 lags are staggered along the length of the board. Deck ledger board attaching a deck ledger board to engineered floor joists. Make it the full width of the porch or slightly wider depending on your porch design.
Flash and bolt the ledger board in place to the house wall. This method may be one of the most ubiquitous ways of attaching a patio roof. If necessary use a sliding bevel to determine angles needed where the rafters will meet the ledger board. 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.
The rafter pitch angle. The lags should pass through by at least 1 2 on the back side of the band board. It is one of the most common ways of connecting the ledger to the band board. 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.