I-joists Oooops

One of our blog viewers noted that the holes drilled for wires thru the I-joists were probably not according to Georgia Pacific specifications.  In investigating, we consulted with Georgia Pacific and others, and developed a remediation.
 
Now, we are in the process of fixing our I-joists.  Twenty-two I- joists are involved.  The spans ranged from 10 ft to 17 ft.  For the longer span I-joists, two 4 ft x 8 1/2 in x 3/4 inch plywood pieces were glued  to one side of the webbing from the bearing end covering the problem area of the webbing of the I-joist.

 

 Then, 2 ft x 1 ft x 3/4 inch plywood piece was glued on top of those and nailed to the flanges of the I-joists.  Another row of larger nails also went thru the center of the webbing of the I-joists.

Lastly, a 3/4 inch plywood piece was used to cover the splice between the bearing end remediation and the new remediation, glued and nailed in place.

Each repair is taking less than 2 hours which includes proper holes for the electrician to come back and rethread his wires.

Note that some of the I-joists are less than 14 1/2 inches apart, as little as 5 inches apart, and so the full repair was not possible.  However, those I-joists had the shorter spans.  They received a repair that involved sandwiching the webbing between 3/4 inch plywood.

Bill is very thankful for the nailer and especially the palm nailer.  He has still gotten a good workout on his right shoulder and the shoulder is holding up rather well.

The plywood is recycled material as it had been used previously in forming the South parapet earlier in the project, so we were glad to find a use for it, though sad that this problem occurred.  The plywood, having been out in the weather, was a bit thicker than if it had just been bought.  Hence, Bill had more of a challenge getting the second 4 ft piece of plywood in place since it had to fit within the previous remediation of the bearing end.