Using Roofing Nails On Joist Hangers
For double hangers use 8d or 10d nails.
Using roofing nails on joist hangers. Joist hanger nails for nailing into the side of the joist photo 5. Now you can slip the joist into the hanger and drive the nails that go into the joist. This may cause splitting of the bottom chord. Improper nailing of an i joist.
Indoors or out for standard type single joist hangers use only 1 1 2 in. Nails installed into the underside of the bottom chord are not necessary. It comes with plenty of holes through which you can screw or nail the hanger to one timber while you drop another timber in the shoe. Roofing nails death on a stick all too often rookie carpenters or do it yourself homeowners will install joist hangers using roofing nails.
Roofing nails are not made to withstand the structural forces that are required for joist hanger connectors. Code calls for joist hanger nails. 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. The joist hanger in this video calls for 10d common galvanized nails.
That s a recipe for disaster as roofing nails are not structural nails. Joist hangers give roofing carpenters a great deal of flexibility. The nail through the dimple should have been installed at a 30 to 45 degree angle. Slip on a joist hanger so it supports the guide and pound the barbed tabs to hold it in place.
The side nail into the bottom flange of the i joist is installed at the wrong angle. Hang the joist with a bent over nail. Roofing nails the use of roofing nails as structural attachments for joist hangers is not uncommon however it should be avoided. 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.
Roofing nails don t have the inherent strength to support the weight of a deck or any framing member. To install start by aligning the top plane of the joist with the top of the rim joist. 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.
As far as overkill probably is but you read about too many deck collapses every year.