How To Attach A Ledger Board To Sheet Metal Siding

The chalk line should be about 1 inch below the door that will open onto the finished deck.

How to attach a ledger board to sheet metal siding.

Then slip flashing behind the siding covering the top edge of the ledger. Never install a ledger board over the top of siding no matter what you hear this can weaken the connection. Properly installing a ledger board for your deck is one of the most important structural components of building a safe and strong deck. Measure the exact width and length of the ledger board with a tape measure.

Next snap a chalk line across the siding the same length of the board. Slip stainless steel washers between the ledger and the siding to allow water to flow behind the ledger. 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. Slip the flashing under the siding so it will cover the ledger board.

Drill 1 2 inch holes through the ledger board into the planks between joists. Covered by the wrb and siding. Attach the ledger with 1 2 inch diameter lag screws or bolts every 16 inches or as specified by local building codes. Anchor deck joists to the ledger with joist hangers filling each hole with galvanized joist hanger nails rated for pressure treated wood.

Step 5 attach ledger board. In order to install the ledger board you usually need to remove the house s siding. Metal or plastic cap flashing covers the top of the ledger with a drop leg of 1 2 in. These 18 articles will teach you how to install flashing and bolt the ledger connection to the house rim.

Gap between the end of the ledger and the ends of siding and fill it with high quality exterior caulk to keep water from leaking behind the ends of the ledger. If you can t get behind the joist to cinch down nuts use lag screws. Attaching a deck ledger securely is only half the work of installing a ledger. Then nail them to the surface you re working on leaving 16 inches 41 cm between each strip.

Putting up furring strips will help even out the surface you re working on so the metal siding doesn t look wavy. Start by making an outline on the siding where you want to position the ledger board. Make the outline large enough to include space for the deck boards on top the ledger and any trim boards on the sides. Secure flashing with galvanized nails.

Snap a chalk line cut out the siding and tack up the ledger board. Aluminum and vinyl siding can easily be removed with tin snips from an area one foot surrounding the ledger board location. To install the furring strips start by cutting them to size so they run from one end of the surface to the other.