Most decks are supported in part by a ledger that is attached to the band joist or rim board of the floor system.
Floor ledger board.
Infiltrating rainwater can travel downward sideways and even upward so special flashings must be used.
The resulting engineered product is a long spanning floor joist about a half to.
Five ledger board techniques explained and illustrated.
Floor framing hung off a ledger hanging a floor system off balloon framed walls isn t too different from platform framing.
Like a roof truss floor trusses are created through joining standard lumber typically 2x3 or 2x4 with metal connectors.
Explore your options for building a deck onto a house with engineered floor joists.
The top of the ledger board should be lower than the desired top of the finished deck by one decking board s thickness plus the thickness of the flashing usually 1 8 inch.
Floor truss systems are very different from conventional floor framing materials.
Temporarily secure the ledger board to the correct location against the concrete wall using concrete screws or temporary supports.
That way water and snow melt won t be able to accumulate and seep under doorsills to ruin interior floors and storm doors will swing past ice snow and leaf deposits.
Drop the level of the new ledger enough to allow at least a 2 in.
Use a wood bit to drill pilot holes through the ledger board.
Attaching a deck ledger board to engineered floor joists.
Any one of these five ledger connection methods properly installed will give you a reliable long lasting deck that is secure.
Joist hangers help to keep joists anchored over time and absorb the forces of the structure above.
Deck ledger board removing the siding for the ledger board.
How to flash a deck ledger board if you cut out your siding to install a ledger board careful steps must be taken to ensure that moisture cannot reach your house.
Because this connection is critical to the safety of the deck s occupants both the 2015 irc and the latest edition of the american wood council s dca 6 prescriptive residential wood deck construction guide provide detailed structural design guidance on fastening a deck ledger.
A ledger board a flat piece of timber anchored to the frame that evenly spreads the load of the joists it supports is used for the installation of hangers.
The floor system is comprised of weyerhaeuser s tji joists microllam lvls for ledgers timberstrand lsl rim board and huber s advantech flooring.
Learn how to cut and remove aluminum vinyl wood and cement board siding for installing a deck ledger board to a house wall.
Carefully determine the height for the ledger which will also be the height for all the joist framing.
Microllams are used where joist hangers are needed to.
Gap between the bottom of any doors and the top of the deck boards.
