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Questions tagged [insulation]

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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Should I put insulation in a shower wall if it's NOT an exterior wall?

I know that I should put insulation in a shower wall if it's an exterior wall, but what about if it's just an interior wall? Is there still a benefit to doing this?
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Basement walls/insulation

My family bought a house one year ago. House was built in 2002. I don't believe the basement was finished by the contractor. (contractor that built the house is out of business now). I'm trying ...
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Insulating a Detached Garage Ceiling

Currently the detached garage walls are insulated with batts of insulation, however the ceiling is not, so here in Illinois, the garage is pretty much unusable most days in the winter. I use this ...
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Soundproofing garden

New houses have been built at the back of my house and they are very noisy. I want to build an outside wall to get some sort of protection. I currently have a standard fence panel and a Hawthorn ...
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Can improved window insulation prevent condensation on the interior of a window

We have a whole house humidifier which is great but one of our windows condenses much more than the others and doesn't dry out because it doesn't get much sun during the day like our other windows. I ...
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Partial insulation of suspended timber floor possible?

We live in a Victorian terraced house and will be putting tiling down in the hallway. I’d like to know whether at the same time we should also do something to improve the insulation of the floor. ...
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Best sound-proofing techniques and recommended sound-absorbing materials?

This is fundamentaly a question about soundproofing and sound absorbtion. When working this project I've realised I don't understand the concepts as much as I though I did. I basically set up a shelf ...
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Can tile or click-lock wood be installed directly on rigid insulation foam

We would like to insulate a concrete condo floor and for height purposes (already low ceilings as well as not modifying fire doors) we cannot add much material to the concrete pad. Typically in this ...
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Why is the interior wall cold to touch during the winter?

When it gets cold out, about - 10°C, the interior walls are cold to the touch. Especially ones in the corners of the house. What causes this? How can it be fixed?
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Low voltage cabling - insulation

I have a closet that is colder than it should be - it is 2 degrees colder than the bedroom it's connected to. The closet is 4'x4', and has two exterior walls. The bedroom is 10'x10', with one ...
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Will a window insulation kit help with heat loss in the winter?

I have shutters over my windows, but I can never have them open in the winter because, when I do, my room gets very cold. I do not believe that my windows are drafty as I cannot see light around the ...
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Risk of insulation triggering mold growth?

The unfinished basement gets water which is pumped out with a sump pump. (Water from heavy rains percolates into the basement.) Company A gave me an estimate to insulate the attic. So did Company B, ...
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Insulation challenge - exposed wood beams with 6" tongue/groove slats on top form ceiling with attic above

1950s Los Angeles ranch style house with 32F lows in winter and 95-115F highs in summer. Ceiling above family room has exposed 6x6 wood beams with 1x6 pine tongue and groove slats resting on top. ...
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My basement wall is adjacent to a filled foundation. Is there any point in insulating?

I was planning on putting foam board insulation on my basement walls before finishing. Then I realized that on the other side of the wall isn’t earth, but a poured foundation for my covered porch. ...
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Restoring steel casement windows

I’m dealing with some 1930’s era steel casement windows, Tudor revival style, that are in reasonably good shape for the most part. They need some maintenance and would like some suggestions for how ...
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What kind of glass should I use for insulating a garage door window? [closed]

While insulating my garage door, I'm considering replacing the existing plain glass with something better. I'm considering replacing each pane, or simply attaching a second layer on the inside of the ...
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Options for insulating a row house bedroom ceiling - [closed]

I have hundred year old rowhouse in the city and redoing the ceiling of a 10'x10'x9' back bedroom in the Northeast US. The roof is a flat top roof and slopes slightly down from front to back so in ...
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What's the best way to insulate an attic with 2x4 joists?

My 1938 home currently has zero insulation (aside from a few fiberglass batts haphazardly tossed about). The ceiling joists are 2x4 (spaced 16 inch OC), rather than the more modern standard of 2x6 or ...
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What insulation can be used between electrical cabin and heater? [closed]

Good day, I work in a paper factory and we have a heater directly behind an electrical cabin. The positions of the two must remain the same. The heater heats plastic packaging to 160 degrees celcius ...
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Insulating shower stud corner

I have a corner in a shower location that butts up against one exterior wall of the house, and as you can see there it is enclosed yet there is no insulation in there. What is the best way to insulate ...
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If it is not going to actively heated or cooled, is there any value in insulating a garage?

In Southern California, during new construction with a finished garage, the cost of adding insulation at this point should be low. But if the space will not have any active cooling or heating ...
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Help with insulating rim joist in crawlspace

I'm in the process of insulating the rim joist in our crawlspace with foam board and spray foam to airseal but I've run into a section of the crawl I'm not 100% sure on how to seal properly. On the ...
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28 views

Dumb insulation question

I need to install an attic floor in my workshop - currently the rafters are exposed. I plan to use 3/4 plywood, then run faced insulation, then install a ceiling at a later date as time permits. As ...
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Can I flatten nails from house siding?

I'm doing some work on the inside of an exterior wall. It's covered in nails from the siding on the outside. I know you're not supposed to flatten these kinds of nails when used in roofing. Is it ...
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Vapor barrier behind electrical panel?

My electrical panel is mounted on bare studs of an exterior wall in my attached garage (living space above). The garage is not insulated and it does not need to be (except for the ceiling which will ...
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1answer
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Insulating inside on an exterior brick wall

I have a city house that is over 100 years old and the bedroom has two exterior walls made of brick. Inside the walls are plastered over. Normally, I would just add 2” framing and use polyiso foam. ...
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Insulation and roof venting

I am in the process of finishing my bonus room (attic space above the garage). There are soffit vents and a ridge vent. If I put insulation in between the rafters before I drywall the ceiling, will ...
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Which is the better first step: rebuilding a basement closet, or insulating the basement walls?

Recently closed on a split-level. The majority of it is well done, but neither my wife or I were content with the basement. It was partially finished, with a closed off utility room, some hideous ...
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3answers
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What are some quick and affordable insulation solutions for a shed?

I'd like to use my wood shop in the winter. It's a detached, 20x14 shed and I installed a 5000watt garage heater already but it takes a while (hours) to heat up and it's probably very wasteful since ...
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Should I insulate the ceiling of a room in an attic with an insulated roof?

My walk-up attic is insulated with spray foam along the roof line. The spray foam delivers an R value of about 20. The attic is finished, and the rooms inside the attic have a drywall ceiling that is ...
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Insulating townhouse's attic sidewall?

Last winter, I've had some issues with ice dams on my roof. I live in a townhouse in Southern Quebec, Canada, in the middle unit, where lately temperatures during the winter can go anywhere between -...
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1answer
40 views

Getting Ethernet Cable Through Exterior Wall

I am looking to run Ethernet cable outside my house. I have already found this question on running Ethernet cable outdoors, but it does not cover the best way to get the cable there. Ideally, I would ...
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To vent an attic or not to vent an attic?

1976 Garrison Colonial located in the Northeast. Cold, snowy winters, hot & humid summers. The current attic doesn't have soffit vents and, b/c of a double layer of roofing, there isn't a ridge ...
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Should I install fiberglass batts underneath my existing blown fiberglass?

I have loose fill fiberglass insulation in my attic (picture below). I was thinking about upgrading the insulation because, from what I've read, this is one of the least effective insulation types. ...
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What kind of glue should I use for insulation to wood?

I've got an unusual DIY underway. I'm making my own billiards table (pool table) cover. I started out cutting down two 4'x8' insulation sheets to set inside of the table's bunkers. I had to use two ...
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Should I replace amissing insulation over the heat tape on my water pipes?

I recently moved into a mobile home and with the temperature dropping below freezing I wanted to make sure my water line was protected. It has a electric heat tape wrapped around it with insulation. ...
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How should I insulate and block moisture inside rim joists where foamboard doens't fit?

My question is around the use of foamboards in finished basements to serve as a vapor retarder and to reduce condensation. I've already fastened foam boards against all the concrete walls, taping the ...
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How should I insulate my renovated bathroom walls?

I am currently in the process of renovating my bathroom and a portion of the walls in the bathroom are exterior. My house is an older home (1950s) and with the drywall removed you can see the black ...
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26 views

Insulation barn second floor

i have a two story barn like building that we bought from home depot and built on our property. I am living in the second story. it is not finished. what is the quickest and cheapest way to insulate
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Ceiling material to use on cold joists

Finishing off our large attic space and we went with 3" of closed-cell spray foam (hot roof application) on the slanted ceilings. My concern is heat transfer through the joists. We live in MN and ...
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2answers
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I have R-13 exterior insulation around my foundation. Do I need more inside to finish the basement? [closed]

My home was constructed in 2016 with exterior insulation around the foundation (see image). They also put in this hanging batt fiberglass insulation on the inside of the walls, which seems superfluous....
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Using wool curtain in gardenhouse

We got a very nice and large piece of wool, and it would be perfect to use as a separation curtain in our small gardenhouse. Somebody (not an expert, and not from experience) told us that somehow ...
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what is good material for 100C to 130C for heat box [closed]

I am trying to design a small box (25" x 25" x 25") for an uniform heating oven. I am planning to heat around 100 C (212 F) to 130 C (266 F). I was searching for several material such as green board(&...
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Why do I have Insulation in internal wall between two rooms?

I have been carrying out a bit of DIY in my bathroom, in a new wall which was put up with my loft conversion which happened of the winter. Inside this new wall, I've found a significant quantity of ...
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Rigid foam board expansion

I’m installing extruded polystyrene rigid foam board over my exterior sheathing. I got a little behind schedule and now the temps have dropped to the 30s (Fahrenheit). Do I need to allow for the foam ...
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2answers
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Will 3.5" polyiso keep my electrical cables from melting?

I am converting a room into a sauna that will frequently be very hot (100+C). It has some wiring -- a few outlets and a light, from its previous use. The insulation for electrical cables is rated up ...
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Should I seal the heel gap between my trusses with fiberglass insulation?

I have a 35'X35' shed on a concrete slab with Steel exterior and roof on 6" walls. I am preparing to blow insulation into the rafters. There is a gap from the top of the wall to the beginning of the ...
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How should I remove closed cell spray foam insulation which has shifted the framing?

We had our basement spray foamed last week and when the foam expanded it pushed out a 2foot section abound an inch from the block wall is there an easy way to remove part of that foam and push the ...
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Floor insulation & vapor barrier for an (sometimes) climate controlled shed sauna

I have an existing 10'x12' wood shed on my property that I want to convert to have a sauna, changing room and small shower inside. Climate wise I'm in the Pocono mountains of PA. The shed is built on ...
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Blowing in Wool Insulation

We bought a house in Northern Arctic Minnesota last summer. After outrageous propane consumption this last winter I decided to check out the insulation in the attic. This summer a leak developed and ...