3 ms·
Disclaimer: I'm not an HVAC professional, but I did apply closed cell foam insulation to one of the rooms in my house. In my experience, the spray does a very
by antisthenes 7y ago
Disclaimer: I'm not an HVAC professional, but I did apply closed cell foam insulation to one of the rooms in my house.
In my experience, the spray does a very good job of sealing the joints where applicable. That's probably not the right type for an attic, but more insulation would generally be better than less.
That's not a particularly scientific approach, but when we're talking about old houses, you're almost never going to be able to do everything the way you want 100%.
- howard941 7y agoI'm trying to envision what you did. Were you sealing up penetrations in an exterior surface or along a joint edge or were you filling voids in for ex the wall? I had good results filling a nasty opening around a water pipe with the spray but it didn't last because I failed to observe the warning about UV degradation and the material eventually flaked away.