Gale Tedhams: Hi! I am Gale Tedhams and I am from Owens Corning. I am here today to talk about how to add insulation to your attic. First let's look at some of the insulation product options that you have. The first product we have is Fiberglass loose-fill insulation. Now, loose-fill insulation is blown in through a machine and through a hose up into the attic and it expands many times the volume of this package. Fiberglass insulation is naturally noncombustible, it doesn't support food, it's not a food source for mold, it won't rot and it'll last the life of the home and perform for the life of the home.

Now, the second thing we have is a Batt insulation and that's like a pillow of Fiberglass insulation and it comes in a couple of forms. One in a roll, this is a one piece roll and also batts and bags which is precut batts, this one in particular has eight pieces and they are cut to 48 inch in length. You notice also that they are faced, and what that means is that on the back of the insulation is a paper vapor retarder. Now it's important to know that if you already have insulation in your attic you don't need and you shouldn't use a vapor retarder, because the vapor retarder would be between the layers and it might threaten moisture there. However, if you have no insulation at all, you need to check with your local building codes, a vapor retarder might be required. If it's required use this and if not you can use this or you can use the unfaced product.

So, if you look at the roll here, it's got a lot of information for your project. This package is a roll batt, it's one piece and it's 25 feet in length. It's an R-30, made for attics and flat ceilings. So, you can look at the package to see what you need for your project. So, now that we know what options we have for insulation, we can go ahead and measure to see what we need. First of all, measure the depth of insulation that you already have and calculate how much you need to get to the top of your floor joist and as well as, to the total amount of insulation that you are going to use. The DOE, the Department of Energy recommends to have up to an R-60 and this depends on what climate zone, and where do you live in the country?

Now, an R-60 is 19 inches of batt insulation and 22 inches of loose-fill insulation. So, those are the numbers that you need to have in mind. The next thing is, that you need to measure the square footage of your attic and you do that by measuring the link and the width and multiplying those two numbers together. And finally, you need to measure between the joist to know what that distance is, if you are using Batt insulation. Typically homes are 16 to 24 inches on center. So, we have learned about the measurements and the selection of products that you have, so now we are ready to start insulating.