Using Roofing Nails On Joist Hangers

As far as overkill probably is but you read about too many deck collapses every year.

Using roofing nails on joist hangers.

Joist hanger nails for nailing into the side of the joist photo 5. They are relatively easy to level in fix very strongly indeed and allow the carpenter by using temporary fixings to get all timbers in place. Remove the guide and drive nails to attach the hanger. Put the tip of a roofing nail and a joist hanger nail in a vice and try to bend them with a pair of pliers.

Joist hangers give roofing carpenters a great deal of flexibility. What s more chances are high that the use of these nails would fail a building inspection. Roofing nails are not made to withstand the structural forces that are required for joist hanger connectors. That s a recipe for disaster as roofing nails are not structural nails.

Hang the joist with a bent over nail. The joist hanger in this video calls for 10d common galvanized nails. Improper nailing of an i joist. Screws are also unnacceptable for hangers since they do not have the shear strength of a nail.

Roofing nails don t have the inherent strength to support the weight of a deck or any framing member. The side nail into the bottom flange of the i joist is installed at the wrong angle. Code calls for joist hanger nails. Nails installed into the underside of the bottom chord are not necessary.

The nail through the dimple should have been installed at a 30 to 45 degree angle. This may cause splitting of the bottom chord. We re using a scrap of wood screwed to the joist as a brace to hold the joist in position while we fit the hanger but you can also use a nail bent over to form a hook. For double hangers use 8d or 10d nails.

Roofing nails the use of roofing nails as structural attachments for joist hangers is not uncommon however it should be avoided. To install start by aligning the top plane of the joist with the top of the rim joist. For double shear single hangers photo 4 fasten the hanger to the joist s with longer 8d or 10d nails. Indoors or out for standard type single joist hangers use only 1 1 2 in.

Now you can slip the joist into the hanger and drive the nails that go into the joist.