Originally Posted by jams003
what do you mean of this, Foam in a can:how to use multiple times??
The OP is referring to the insulating foam that comes in a can. It's good for spraying in insulation into cracks and small holes. (We just went around the entire basement spraying it into holes where various lines and pipes were coming in).
The problem is the stuff is nasty to use, and it dries up pretty soon after using it. For what it's worth, I'd just go around the house using it where ever you see a need, wait two hours as kok328 suggested to see if you need more, and then be done with it.