I have a closet in the master bedroom of my home that is on an exterior wall. Unfortunately there's no insulation on the back wall of the closet and so a lot of heat escapes. We keep the closet door closed and that helps. The closet is about 6 feet wide and there's drywall on all walls of the closet.
I was thinking about using a spray foam to try to remedy this. I wanted to drill large holes at the top between each pair of studs and drop a little tube via which I could deliver the foam insulation.
My question is, what kind of personal protection equipment is necessary here? I have goggles for sure. I have a cheap mask. Should I use more heavy duty respiratory protection? Also, do I need a protective suit over my clothes? I've seen this on YouTube.
As the foam is curing, I saw a YouTube video that described the reaction as exothermic. Is there ever a fire hazard with deployment of a foam?