Roof Nails On Deck Joists

But they usually hang from the ledger that is bolted to the house on the inside.

Roof nails on deck joists.

True the joists sit on the beam on the outside on the deck. Spans sizes and spacings for deck joists and deck beams are discussed in detail. The long nails and screws that are driven into each joist provide dozens of entrance holes to that untreated core. Roofing nails are not made to withstand the structural forces that are required for joist hanger connectors.

For double hangers use 8d or 10d nails. Joist hanger nails for nailing into the side of the joist photo 5. For double shear single hangers photo 4 fasten the hanger to the joist s with longer 8d or 10d nails. The use of roofing nails as structural attachments for joist hangers is not uncommon however it should be avoided.

What s more chances are high that the use of these nails would fail a building inspection. Some manufacturers sell special decking nails with a head size in between the two. Treat all sides of the reinforcing joist with a clear sealer and let it dry. For 5 4 decking use a 10d 3 inch nail.

Start driving a nail near the top end of the joist then bend it over. Position the reinforcing joist tightly against the damaged joist and attach it with 16d 3 5 galvanized nails driven every two feet or fasten it with 3 1 2 inch galvanized deck screws. Remove the guide and drive nails to attach the hanger. It can even cause damaging expansion and contraction if water penetrates these holes and freezes.

Hang the joist with a bent over nail. I believe simpson strong tie calls for 3 1 2 16d hot dipped galvanized nails to be double shear nailed through their joist hangers filling every hole. This can cause the joist to rot from the inside out. Indoors or out for standard type single joist hangers use only 1 1 2 in.

The 16d nails will fasten your hanger to the wall ledger while the 10d nails will be nailed through the side flange of the hanger into the joists. Using a 3 inch galvanized nail and nailing it flush will pull the boards tighter versus sinking through the. This type of hanger requires fewer but longer nails for the side flanges. For standard joists you will use the 1 1 2 inch galvanized hanger nails to attach the joists using standard joist hangers.

Now you can slip the joist into the hanger and drive the nails that go into the joist. Screwing deck boards also creates large holes for water to soak into and rot much faster. This part of your deck construction is labor intensive.