I’m getting ready to install Hardie Plank siding on my house. The only unusual part of this is that I’m installing it over 1″ Poly Iso rigid foam. I’m wondering if a 2 1/2 ring shank siding nail is going to be long enough considering I need to go through 3/8″ hardi + 1″ foam + 1/2″ sheathing before I penetrate the studs. This leaves about 5/8″ of penetration into the studs. Is that enough or should I use my framing nailer and shoot around a 3″ nail? Anyone have any experience with this that could make a recommendation?
Replies
I think you're OK (just barely though) with a 2 1/2" nail.
There have been recient posts on that issue and some were concerned you would get sagging ofer foam with nails.