The most critical concern while installing the ledger board should be how to prevent water from entering the seams into the house. Heavy coated joist hardware specifically manufactured for the new pressure treated lumber, like Simpsons triple coated galvanized, Z-Max joist hangers must be used.Stainless steel hangers are by far the best solution but also the most expensive.Īluminum, lead and copper flashing should have a rubberized flashing barrier between it and the pressure treated wood ledger, this helps decrease the corrosion rate that occurs between the flashing and pressure treated wood preservatives.Ī second beneficial point for using the rubber flashing is that it helps prevent rot and decay as a result of water accumulation under the deck boards. these connectors tie the house and the deck together and protect against lateral loads from seismic, high winds or movement of people on the decl. I recommend using Simpson Tension Ties # DTT2Z on new decks and retrofits. This non-arsenic pressure-treated CAA wood has chemicals that accelerate the corrosion of galvanized metal components, typically used on decks.Īccording to the IRC two galvanized lateral load connectors need to be installed to connect the deck joists to the interior house joists. To do this you need to be able to access the basement and be able to reach the inside face of the house’s rim joist.Unfortunately, due to framing configurations, mechanical equipment location and finished basement walls and ceilings this is not always an option.Ĭontractors must now make sure that the fasteners they use are compatible with non-arsenic treated, CCA, pressure treated lumber that is sold today and used to prevent corrosion.
How to do a ledger board on brick house install#
The BEST, and my preferred method to install a ledger board, is to install heavy galvanized, carriage bolts with washers and nuts. The most common method is to install ½” lags with washers or carriage bolts with washers.A ½ x 4” lag bolt is rated to provide 180 lbs support of allowable shear load per screw.Many types of structural screws are also available from various fastener manufacturers. The connectors your choose will be required to support hundreds of pounds of shear load as well as prevent the deck from ripping away from the house.Attaching a ledger board to the house rim is the most basic and best option of all the ledger board applications. It’s important that you use the right type and size connectors to install your deck ledger board to the house framing.
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