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.
Attach an awning ledger board to a wood siding house.
Locate a position for a header or ledger board.
This is the only way to ensure the connection is water tight.
In order to install the ledger board you usually need to remove the house s siding.
Most house framing relies on building elements floors walls roofs being stacked one atop another.
Dia galvanized or stainless steel lag screws in every other joist space alternating up and down positions to keep the ledger from splitting.
Attach 2x6 rafters to the house with joist hangers and or supported by the ledger board.
Make it the full width of the porch or slightly wider depending on your porch design.
Find the wall studs or roof trusses that will have to support the ledger.
Aluminum and vinyl siding can easily be removed with tin snips from an area one foot surrounding the ledger board location.
So make a mark above 7 to 8 inches and keep a minimum gap of 2 inches at one of the ends.
Determine how high it must be to provide an adequate slope to the roof.
Rafters are placed on 24 centers and attached to the beams and settle joists are attached as needed image 1.
Also you need to keep enough open space approximately 3 4 inches above the top of the mounting bracket and ledger board.
The awning should be at least 7 to 8 feet above the ground or the patio.
If necessary use a sliding bevel to determine angles needed where the rafters will meet the ledger board.
If your siding is not beveled you can simply screw the ledger tightly to it.
Predrill and sink 1 2 in.
Anchor deck joists to the ledger with joist hangers filling each hole with galvanized joist hanger nails rated for pressure treated wood.
Once the ledger board is tightly fastened into place use a caulk gun to caulk all the seams between the ledger and the house with weatherproof caulk.
Never install a ledger board over the top of siding no matter what you hear this can weaken the connection.