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Insulation to Conserve Heat and Reduce Noise
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Insulation to Conserve Heat and Reduce Noise
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" Joining us now is -- largely from -- insulation -- contractors who are putting in all the fiberglass insulation and -- So let's talk about that the areas cause obviously it's different what you're -- in the sides closer than what you're doing up in the -- so right now we're looking at the sidewall what what kind of insulation is this the product that they're using in this home has a three and a half inch high density. And it's course it's fiberglass it happens to be -- so that and it tells us who makes it that's correct the -- aides say it's nothing out of what. And it's nothing new it's what we've been using for years in the and a -- the only. The only difference between the this is the highest. And without getting too detailed how they do the extra four. Ours there is more fiberglass product actually put into the blanket itself making it more dense and more -- rigid. As opposed to the now any tips on on and you know what they're doing is for example installing around -- an electrical box and stuff correct when they're doing around they're trying to make sure that there isn't as much compression as least amount of compression as possible both at the bottoms of the wall that's around electrical outlets. Trying to get that's probably the most important tip that you can give homeowners do not compress. -- insulation don't squish it in -- it has to be fluffy has to have the air trapped in between new -- around any compression of the blanket will drop the ability of the blanket to trap heat in an area is -- Notice around the window over there. He is actually drinking it in with his knife correct they do that application for that does that compresses it though doesn't it does not the biggest reason why they're doing that is to. Predominantly stop cold wind and air penetration from outside in around -- area I see as opposed to some people would like to see those areas phones. We would either foam it or stuff it with fiberglass it's predominantly in place to knocks on air penetration around the windows and door jambs IC. Now the job of the insulation is to keep the warm air. In the heated envelope of a house from escaping right got it correct now why do you put any polyethylene moisture barrier in place all the vapor barriers installed over the insulation. To ensure that you don't have moisture condensation problems during hot to cold Air -- first as you can see there is a craft facing on this product in the wall and the ceiling cavity yeah it has for Landers on it which can be insert stapled into the cavity. On a wall application we use the polyethylene vapor barrier. To get us some more uniform vapor barrier one solid vapor barrier across the wall and it also seals off any -- protect air infiltration. In between stunning yeah OK but they in the house wrap is on the outside of the house and that's put there to keep any. Cold air from infiltrating through the wall correct and the concern that a lot of people have is that you're trapping moisture. Somehow in the wall cavities that you're gonna get wet plywood -- insulation OK our our theory and that is that heat and moisture rises and as long as the heat moisture is dissipating outside the home. I rising through the ceiling areas and dissipating out that it shouldn't really be able to trap inside the wall cavity. Now let's talk about roof insulation I. A standard attic installations in -- thirty and we're using an 38 which is a full twelve inches so that we get our energy star rating. Any problems inherent in this kind of installation. Well the area that they're insulating now is an area of critical concern. Where the installer is actually putting in the twelve inch 38 blanket. The first thing that needs to be installed easy styrofoam baffle vents that are being put in the rafter system. You have to make sure that those rafter vents go and exceed the one foot of insulation that's being placed in the attic so that the vent. Actually extends up above that one foot of insulation. So here you want the installation in the roof fifth. Cover beyond the sidewall right correct as you can see he's pulling the blanket out beyond the wall plate. So that it actually does the fiery end of that insulation. Would meet at least where the sidewall application comes up. And doesn't stop at the top of the wall plate where that last piece of strapping us. Now the last thing we're doing involves sound attenuation noise control with this product is called the Quietzone what what is it. Quietzone is a three and a half inch bat insulation. Applied any interior two by four studding for sound deadening so it's regular fiberglass which does have a good role as as a sound attenuated that and I obviously between a bathroom and other rooms in the house. Great idea that's correct thanks I would very much Bob OK."
