11/32" T1-11 siding
11/32" T1-11 siding
(OP)
I am using 11/32" thick T1-11 plywood panel from Homedepot (4'x8'x11/32") on exterior walls of one story house. The plywood is nailed to the wood studs of the exterior wall directly. The inspector feels that the plywood is skinny. APA has shear values for 5/16" plywood and my shear loads are below that. I have not seen anybody installing g OSB under the T1-11.
Any idea will be appreciated.
Any idea will be appreciated.





RE: 11/32" T1-11 siding
It is skinny but the that doesn't mean it isn't capable. I typically use 7/16" OSB on the walls. Plenty of capacity, readily available, and cheap like borscht.
RE: 11/32" T1-11 siding
All the T1-11 we use is 5/8".
RE: 11/32" T1-11 siding
Do the calc for this specific situation and prove to him (and your future customer) that the plywood is acceptable.
If needed, add more nails. (Too late now to use glue behind the wood, right?) Add shear and reinforced screwed plates at the corners so you don'y have to remove and replace plywood if the current pieces are actually too small. Add inside plywood shear plates.
First, find out if you actually have a problem - then solve it if you do..
RE: 11/32" T1-11 siding
RE: 11/32" T1-11 siding
He might be right!
Inspector Jeff