How to Choose and Use Foam Insulation |

Now, when you're insulating around a window, you also want to make sure that you're using the right kind of foam.
I tell you: I go down the aisle in the home center, those be a thousand cans.

How do you pick the right one?
Well, actually, if you're doing a window or a door, you actually look for the can that says window a door on it.
That's easy enough takes the guesswork out of it. Doesn'T it yep alright?

Now, when I'm filling that void between the window and the frame, I want to put a little bit in not too much, but I want to get enough in there. So it's all filled now. The idea of it is is not to put too much of this foam in and I don't want to use any other kind of foam, because it will expand so much that it will lock the window and push this right over in the window.

A door will not open. Have you actually seen it expand that much that it makes it shut many times so for windows and doors you want to have minimally expanding foam correct all right well over here is a different situation. We have a mock-up of an outside wall foundation, sill and stud wall right. What about sealing that up?

What are you right now? 
The gap right here between the foundation and the sill is a lot of air. They can get infiltrated, sort all right, cold, air in and warm air out. What you do there is you actually use a gap and crack foam. That'S pretty simple! You simply take it shake the can up turn it upside down, push it into the gap. As far as you can get it and squeeze out your foam push it in whenever you get to that spot, where it's going to go in, fill that up whenever you and let it foam out all right now, I've got enough in there and now I fill That gap now, let's say I had a break in the foundation where I had a big crack yeah, then I would use one that says: big cracks and gaps. Well, I, like the system, just take the guesswork right out. That'S right all right! Well, what about up? In the stud wall right here, you've got these electrical outlets. How do you make sure those are airtight? There'S always a draught through an electrical outlet all right now, let's say I was framing a wall, I'm getting ready to put my fiberglass insulation in there.

I'D cut the fiberglass insulation around the outlet put it into place, but before I did that I would put this insulation can right in back there and I would spray foam right back down and that will fill that gap.

Stop the air drafts alright.
So that's all our infiltration out to the outside, but what about these holes now anytime, you have an electrical outlet or electric a wire, a pipe or a duck. You got an issue with air coming up through the building or even fire coming up through. That'S right: that's called fire blocking when the electrician drills a hold is a void. I could simply take this foam push it in there and fill that void. Yeah, I'd.

Do it at this level in every level sure to stop the flame spread yeah all right, but they make it caulking a foam caulking that says fire blocking on it. So what's the difference in that on the standard? Well, the only difference between this and the standard is this is a brighter color. The reason they have a brighter color is. When I get my inspections, I asked for the inspector to come and look at the wall framing, for example, he's now looking to make sure that the wall is fire, blocked off, that's your and he can see that bright color. That'S the only difference right all right. So we've sealed up all the penetration in the building.

What about a big opening like this at the rim? Joist? What do you do? Well, I wouldn't use the foam and it can. I would use something different. This is more of a professional product. It'S a two-part polyurethane foam, that's sprayable! Now I see the two canisters two hoses and one gun right and you can get it from an insulating contractor or you can even get it online. So what does this cost? It'S cost about three hundred and fifty dollars. It'S not cheap, but you can do a lot of area now, I will simply spray it in the bay. Use a lot of cans to get that much oh yeah. Now that would grow right out in a second
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