Insulation is any material used to slow the transmission of heat or reduce the transmission of sound. Typical materials include fiberglass, foam, blown cellulose, and reflective foil. This should not be confused with weather stripping.

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Installing bathroom exhaust fan: what to do with vapour barrier and insulation?

I'm adding a bathroom exhaust fan, which is being mounted in the ceiling of the bathroom (in the attic) and venting out through a vent in the wall. right now, there is a vapour barrier (paper) ...
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how to achieve a reduction of noise of -60 dB in as little thickness as possible of insulation material?

I am looking into materials to acoustically insulate a room, and I need to do it in as little thickness of the material as possible. I found something called Balterio which is a 3 mm thick stuff sold ...
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766 views

Reducing Attic Fire Risk

When I had my house built, it got cold and so we called the local power co-op energy savings expert to give us advice. One of the things he said was that we had the wrong kind of insulation in the ...
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How do I deciding whether to install an attic venting system?

I live in Colorado, and the weather is starting to warm up. In a couple months, the temperatures will rise pretty high. Thankfully, I have a well insulated house (there is over 20 inches of fiberglass ...
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My kitchen has no real walls. Is this going to be a problem?

I recently redid my kitchen, which included removing the back splash and putting in new tile, but when I went to remove the old tile, I found that the tile is only attached to drywall. Knowing this ...
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How do I avoid condensation issues with an insulated garage roof?

Yesterday it was raining (slight overexaggeration of course) :-) inside my garage... Hood of the car was covered with nasty orange water spots. It's an attached garage. There's no garage "ceiling" ...
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Adding Insulation to Exterior Walls

I am looking at purchasing an older home that is brick on concrete blocks on plaster (from the outside in). I recently heard from someone else in the neighborhood that those homes were not ...
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Insulation in the attic

I have moisture and a moldy smell in my attic. I had someone come out and open up the eaves and soffets more. It did seem to help but I still have some smell and some moisture. I have insulation on ...
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Insulating ducts in a crawlspace

Consider a source duct from the furnace/AC. The ducts run in a vented crawlspace. The floors atop the crawlspace are a mix of hardwood and kitchen vinyl. The symptoms are: the longer run vents ...
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How do I determine what supplies to buy to insulate an attic?

I would like to add more insulation to an attic. What measurements and points do I need to look at to decide what materials to buy? How do I determine if I need airflow baffles? How do I determine ...
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How bad is it to have wet insulation?

With this recent blizzard we recently saw our ceiling lighting fixture leaking water (slow, about 1 drop every 5 minutes) I got up in the attic and saw that some snow had been apparently blown into ...
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How do you insulate your pipes to protect against freezing?

So, my pipes froze in my house today, and it made me realize that I should better insulate them for the rare days that it gets in the teens here... What should I do to insulate them?
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Glue crawl space rigid insulation

I've dug a trench around the perimeter of my crawl space. Then I planned the next steps. I took a week off but I'd like to finish this project next weekend. I am going to glue 2" R-10 FOAMULAR 250 ...
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Should I use foam spray insulation in my crawl space?

My crawl space has no insulation. The dirt is wet near one of the walls. There have been termites in the past. I'm thinking of insulating the ceiling (between the joists) and the walls with foam ...
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Determining if there is insulation behind a wall

Learning today that some of our walls are a whole 20 degrees colder than others (all facing east) I'm convinced we may not have proper insulation (it's a new house, but we've head numerous problems ...
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430 views

Extra insulation for panes of aging windows

The original windows on my 30-year-old house are insulated pretty well around the frames, but the panes themselves transmit a lot of cold air, especially when things drop down into the single digits, ...
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Is this insulation supposed to be there?

I was adding some insulation foam into our fireplace as a way of stopping drafts from the chimney. It's obvious that it's installed so we won't ever have it there when a fire is lit (we have not yet ...
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Is insulating an unfinished basement worth it? If so, how should I go about it?

I have an unfinished, well waterproofed basement with cinderblock walls and a concrete floor. All but the top 6 inches / 15 cm or so is underground. Would it be worth insulating the walls down there? ...
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How do I fix incorrect attic insulation?

I have loose fill attic insulation. It seems to have been moved around and become compact. Is it just as easy as getting in there with a broom and 'fluffing' it up and moving it around, or do I need ...
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How can I seal around a light fixture/light switch outlet?

I Have a house built in 1972. I'm currently 80% finished in installing a ceiling fan into my master bedroom. I had an energy audit about a month ago, which revealed that I had "pretty good sealing" ...
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What happens when a vapor barrier is too close to the cold side?

The vapour barrier must be installed on the warm side of the wall, that is on this interior side of the house. It is permissible to have it sandwiched in the middle between two layers of insulation, ...
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How do I prevent window drafts?

I live in Florida. I have noticed that in the Winter it seems that the cold air leaks through the windows and into the rooms. This, of course, raises my energy bill for heating (yes we have to turn on ...
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Is a vapor barrier necessary beneath blown in cellulose insulation in a garage ceiling in a cold climate?

Is it necessary to put any kind of vapor barrier beneath blown in cellulose insulation in an attached garage? The ceiling is sheetrocked, but that's it. It's a cold, dry climate (north half of ...
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Additional Vapor Barrier with Faced Insulation?

When installing faced insulation into exterior walls, are there any benefits or detriments to adding an additional vapor barrier to either the non-faced side of the insulation?