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Insulating the Home

Jim and John Case show Bob how to insulate the cathedral ceiling. To insure airflow and prevent condensation buildup they install channels between each rafter from the eve all the way to the ridge vent. Then they use a dense pack paper backed R-30 fiberglass insulation. This allows for the channel and the insulation to fit between the standard rafters. In the walls they install an R-13 with a plastic vapor barrier instead of the paper backed. Since there is less air movement in the walls, they need to insure no moisture gets in.
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Insulating the Home

  computer-generated transcript - may not be 100% accurate

" Now again and gun case two Brothers in the insulation. I don't -- it -- are now. The first thing I want to talk about it our cathedral ceiling of the features did you find a lot nowadays contemporary houses. What's the best way to insulated."

" Well Bob. Well it depends on the size rafter that -- framer uses when. Bringing out yet but in this case we have to -- and is basically give -- face. And now -- these -- baffled. Which -- well. Person -- well. Right along the roof -- which helps -- of the roof black vote no longer yes. One of the important."

" Things make sure that don't have moisture collecting up there in the in the ceiling area or in the installation right. So this would allow -- kind of aired a blow through here coming in from the -- and then how to get out top. Plate. OK that's it and say. This is the item the roofing contractor which are -- and there's enough of a gap left in the sheathing that all that air gets right back now. Now what's the."

" Well you're not thirty. Especially usually they -- high density blanket it's maybe a quarter inches -- it's. It's we've been recently made last couple years they've -- this -- used to just have Atlanta at this point it would shoes and about thirty or ceilings. But it below the specifically for two -- and framing speaking to to -- lot thirty thickness and still allow your air space along your roof --"

" Now this material has the brown paper or wrapping paper backing on it as a moisture barrier. You don't need to put an additional -- queen barrier across that."

" We use that on the walls Bob but on the ceilings we use you know craft faced -- letters Qaeda. Moisture that are. And it allows a little bit of it will little bit of breathing where you do already have an air blowing air movement."

" Now what about the while we're kind of an."

" You've got an opportunity -- Bob. Mass code says that you -- about an -- eleven OK we like yes they've seen it a little bit better insulation product in the at. The IR eleven and the -- being physically out Hussein in half inches imagine that you get a little bit better."

" Now -- what about comfort installing this a lot of do it yourselfers just go crazy. Coughing hacking and scratching on their war when they have to handle the fiberglass."

" Well it either as you can see is -- area in space past the mud. Rose garden also bottles and it got to injured regulars in there for quite awhile now and in -- both up. The newly to a lot of it doesn't bother him correct. Your homeowner though if it's someone -- insulating their attic or walls whatever. They'll probably want to wear. Long sleeves and but we've baseball cap was sometimes welcome."

" Particle mask and goggles that are threatening that the courts -- properly installed job. None of -- it's -- of the sidewalk all compact it and read it."

" It's in fact it right in there it's sealed up in which she rocketing. Out of -- vote."

" OK now in the -- you youth thing fiberglass installation but. It doesn't happen brown wrapped they've run flat."

" Well in the exterior walls you don't have any -- lately we've. So you have moisture cutters all the world -- report. Seals it up over the -- We'll for the walk. When can it keep -- burning up. Out that this is of extreme importance right if you do get moisture penetrating -- the wall cavity and that insulation gets -- You're losing its suspected. Correct yeah and if not Enid green. All right and a second sheet goes right up. If we've got an extra tall wall here now what mil polyethylene is that -- because that's what's rebuild following up we'll wait three little wood design is great."

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