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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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What is the best way to insulate cold water copper pipes exposed on a flat roof in California

We live in Los Angeles and have a flat roof that our hot and cold water copper pipes run across and are all exposed. The cold tap water, in the spring, summer, and fall is so hot during the day. ...
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R5 or R7.5 XPS before R11/R13 Fibgerglass for basement in Zone 5?

Insulating basement walls that are most below grade. Zone 5, and using a mix of rigid foam board and then framing 2x4 walls and insulating between the studs with R11 or R13 (whatever is on sale and ...
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Insulating built-in air conditioners

My apartment has Frigidaire built-in air conditioner holders. I did not buy a Frigidaire AC unit because the size needed to perfectly fit the holder was unnecessarily large (and expensive). I have a ...
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How to insulate the inside of a door

I am building a sliding door with a frame made of 2x2s covered with plywood panels on each side. I would like to make it reasonably soundproof and was planning on filling the void with some insulation ...
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Insulating a steel outbuilding, first major DIY project

My parents just bought a house. My dad, a disabled vet spends most of his time in his workshop. His new workshop is a 700 sq ft steel outbuilding that has no insulation. I have a local AC company ...
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1answer
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How to replace UFFI insulation in walls with no access from basement or attic?

I recently bought a house, and had an energy assessment done which determined that my exterior walls have old UFFI insulation that is rotting away, leaving substantial gaps and allowing heat transfer ...
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noise reduction from a wooden ball wall

My husband and sons built a wooden wall in our backyard to use as a ball wall for soccer and lacrosse. Our boys bounce the ball off the wall to practice. It is about 10X10 frame with plywood affixed ...
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If I blow insulation everywhere in my attic except the door trap, will heat escape through it?

I want to blow insulation into my attic. The door into my attic is on the floor and made up of a large board which doesn't have hinges. I have to push the door up and slide it over in order to gain ...
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Pipe not straight, touching another pipe - possible fixes

Problem: hearing clicking metal noise when water-based heating is on. Because this sound travels so quick, it was very hard to find the spot, but finally found it - right below the outlet. Opened the ...
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Insulating basement concrete walls - anything missing?

Live in Zone 5b, going to shoot for 2" of XPS DOW foam board. Planning on gluing it to the concrete wall with foam board glue and bracing it while it cures. It will run to either the top edge of ...
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Insulating a replacement insert window

It seems that if I want to properly insulate our windows, I need to choose a full-frame window replacement vs an insert. Since our house has stucco siding, I fell this may quickly get more ...
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1answer
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What is this picture of an insulation blower showing?

This seems to be showing a guy aiming a cellulose insulation blower at an open wall, and somehow the insulation is sticking to the wall in perfect strips. What is really happening? This is from the ...
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Is partial double glazing worthwhile?

My house has single glazed windows. I understand that bubblewrap can act like double glazing, however doing this will ruin my views. Is there much advantage in only covering part of the Windows (say ...
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2answers
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Cape Cod Insulation/Snow Melt [closed]

Is the melting pattern on this roof a sign of really poor insulation in the knee walls? Thinking about purchasing, but I don't want to spend my life fighting a poorly designed/insulated house if it's ...
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I rented an insulation blower. How do I get the insulation into the attic?

Apparently the blower weights 150 lbs and I'm not sure if I can get it up into the attic. Or, perhaps, are the hoses long enough to reach all edges of a 1000 sq ft attic without requiring the blower ...
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1answer
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How are Clopay Intellicore garage door R-values so high?

Clopay's garage doors with their proprietary "Intellicore" polyurethane foam insulation claim R-values as high as 20.4 in a 2" thick door, or R-10.2 per inch. State-of-the-art spray polyurethane ...
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What are the minimum insulation code requirements for a steel arch building (Quonset hut) used as a residence?

I'm interested in building a steel Quonset hut home in central Texas. I've done a fair amount of research on what's involved, but I'm stuck on insulation. The IECC defines minimum insulation ...
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Rigid foam board between flat roof rafters

I have a bedroom I am renovating with no insulation. So I took down the ceiling and towards the back of the house the roof rafters actually almost line up with the ceiling itself. I thought that ...
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1answer
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Would mylar provide adequate insulation for an infrared sauna located outdoors?

I'm planning to purchase a portable indoor infrared sauna to be located outdoors under my deck. Although ambient temperatures in the SF Bay Area are fairly mild, I am concerned that it might take ...
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1answer
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How do I insulate my unfinished basement with half foundation, half siding?

I have a 1910 bungalow with an unfinished basement. The issue I'm encountering is that the main floor gets extremely cold in the winter and requires a lot of heat ($$$) to keep it warm. The unfinished ...
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1answer
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Our top floor is finished/heated. How to prevent ice dams?

I'm in snowy Minneapolis, living in a 3-story house built in 1886. The top floor is fully-finished and heated, and there's no attic. We've been getting crazy ice dams this year, but not previous ...
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1answer
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How thoroughly should I scrape paint from cement basement wall before insulating?

I'm going to finish one corner of my basement and want to insulate the two adjoining exterior walls so that the space will stay warm in the winter. The wall was painted a few years ago and the paint ...
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How would insulate/fill this large enclosed area behind my gas fireplace

I’m currently remolding most of my bathroom because I found some black mold behind a shower tile and then there just kept being moisture the more I uncovered. After opening the wall behind my ...
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1answer
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Does this look like loose fill Asbestos?

I found some type of loose-fill insulation stuffed behind standard fiberglass insulation while cleaning up my basement. The home was built in 1947 and I'm not sure if what I found is Asbestos (see ...
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3answers
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Building an exterior wall within an exterior wall for insulation

I just purchased a 1925 beautiful home that is stucco on the outside and old plaster on the inside. I have some carpentry experience and am realizing the incredible loss f heat to the exterior walls. ...
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Insulating between floors?

I have a "modern" UK house (approx. 15 years old, built as cheaply as possible, a wooden house with a brick shell). If it is cold outside and I heat the ground floor to the minimum I would like, then ...
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1answer
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Can spray foam be used between Rim joist and exterior sheathing?

I have a 40 yr old single story modular home set on a block foundation. I used a thermal temperature gun to verify a temperature difference. the insulated wall is approximately 1 to 2 degrees cooler ...
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1answer
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Refrigerator Side Wall Hole Closure - Need suggestions

In my side by side door refrigerator, there is a hole in the side wall on the right compartment that is intended for letting controllable amount of air from the lleft / freezer side of the ...
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2answers
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Can I add insulation to exterior home walls without redoing all the drywall?

I recently bought a house and Ive found out the insulation is not good enough in the exterior walls. Is there a way that I can just cut a small hole and maybe blow in insulation into the walls ...
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2answers
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Root cellar insulation

Building a root cellar in corner of full basement. No water issues. Humidity is relatively low in winter (SW Montana). Details: The root cellar will be located inside a full basement . The basement ...
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0answers
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How do I insulate between bottom/top apartments?

My house is a two-apartment house, where I live on the first floor and rent the second. It's an early 1900s plaster & lathe, and currently has no insulation. I want to add rockwool in the ceiling ...
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1answer
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Fiber glass In Attic. need knowledge [duplicate]

I have been seeing some dust of Fiberglass(?) floating in the air. Is breathing it, in unhealthy? I was unaware of the equipment in the attic, which I discover all the wrong wiring connections from ...
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Brick wall insulation

I moved into a 30 year old house this fall. The bedroom at the front of the house is colder then the others. Two sides of the room are brick exterior walls vs siding. I was in the attic running ...
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Does dark exterior paint hold and transfer more heat to an uninsulated house?

We are picking exterior paint colors for our stucco house. The interior walls are plaster and there isn’t insulation in the walls. I want to stay away from dark colors because I think it will make ...
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Should I add a vapor barrier in this situation?

I'm finishing my basement. I am wondering about the north wall which is a 2x6 stud wall (walkout basement). I removed the fiberglass insulation an put 2 layers of 3/4" rigid insulation (sealed edges ...
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Ok to add cellulose over blown fiberglass insulation?

I have an attic with blown in fiberglass insulation, probably original and 27 years old. The attic appears to have had some moisture issues in the past (bathroom vents being vented out of the soffit ...
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1answer
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Are you supposed to put a vapor barrier on both sides of the common garage wall (wall between garage and house)?

In my garage, the wall between the house and the garage has visible studs and insulation in it. This insulation is 50+ years old and I am going to tear it out and put in new insulation. My question ...
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1answer
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What is the recommended method of insulating PEX piping?

During the winter chill here in DC, one of my pex pipes that is not insulated and basically exposed to the elements cracked. I blame the contractors who didn't insulate and finish the job, literally ...
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3answers
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Redoing insulation in the basement of the home I recently purchased

I recently purchased a home and have begun to do renovations on the basement. I am starting to look at insulation and so I have been researching what the best way would be to do that. The problem I am ...
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1answer
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How should I insulate my partially finished, currently uninsulated basement?

I am in Alabama, climate zone 3. Half of my basement is finished, well at least it has a dropped ceiling, wood panel walls, an air supply and return, but no insulation. There is an uninsulated ...
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3answers
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Is insulating basement ceiling or first-floor walls more effective?

In an old house with plaster walls there is a large room on the first floor with wood floor. The walls are not insulated. The basement has no ceiling, so you just directly see the subfloor of the ...
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1answer
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Should loft insulation cover wall cavities?

When insulating a loft at ceiling level with mineral wool type material, should the insulation cover the exposed wall cavities for external walls?
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1answer
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Insulation in the basement underneath of my fireplace

I have a gas fireplace that bumps out from the side of the house. It is always been drafty and super cold in the winter, today I went down and pulled down the one piece of batt insulation that was ...
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1answer
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Insulation basement (Rigid Foam). What to do in the unfinished area

I'm planning to finish my basement. Most of it will be finished but there will be some areas that are unfinished for storage. I'm planning to use rigid foam insulation and seal it up. What should I ...
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2answers
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Fireblocking a balloon framed house lead to rot in the walls?

Conditions: Balloon framed construction, house built in 1930, Southern Connecticut region Does installing a fire-stop or Fireblocking where the sill plate and rim joist meet, block airflow and ...
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1answer
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Do you run a conduit under or over concrete wrap in the basement?

My basement concrete wall is covered with a concrete wrap and is anchored to the wall. The walls are unfinished. If you want to add an outlet down the wall to a workbench, do you run the conduit ...
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1answer
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Ceiling insulation question

I live in a 2 story city row house in Philadelphia that is over 100 years old with a flat roof. The space between the second floor ceiling and roof grades down from the front to back - 36 inches or ...
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2answers
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Is the gray insulance material asbestos? [closed]

This is a furnace room. Is the gray insulation material (on the wall and above the pipes) asbestos?
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Insulating conservatory skylights

How can I insulate skylights? My house has been extended and the extension has double glazed windows for roof, think of it as a very sturdy conservatory. I understand why the previous owners did it - ...
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1answer
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Can I use alternative materials to insulate my roof?

We bought a mobile home to use for my office/studio workshop. It's 24 by 60, gutted out with no inside walls, and live in a desert area. The roof leaked and the insulation got wet and ruined. We ...