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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5answers
22k views

How can I insulate my fireplace when it's not in use?

I have a wood burning fireplace insert, that is not currently being used. Now that it's cold in my area (27F), I've noticed that there is quite a draft coming from the fireplace. How can I ...
4
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3answers
819 views

How do I insulate space in loft to create music studio

I have 3 DIY created rooms in my large live/work studio/artist loft. They are made with 2x4 and 2x6, framing with drywall walls and plywood ceiling. The apt has 14' 7" ceilings so we just have ...
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1answer
98 views

Causes of condensation in basement wall

First time home owner of 1 year old house in Southern Ontario. South facing basement wall (50% above grade) has condensation forming between polyethylene barrier and pink batt insulation. What ...
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2answers
434 views

How could one insulate sill plate from the outside?

My house has a gap between the Basement wall and Sill Plate (location best shown in this picture). While there are several question and answers here, I have not found any that deals with a fix from ...
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2answers
10k views

My neighbor keeps complaining about my music. How to soundproof my apartment?

I live in an old apartment building and the walls are thin. This is a problem because I love to listen to music -- sometimes at odd hours of the night. Yes, I can be an asshole in this way. But my ...
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2answers
136 views

elegant attic hatch design for several purposes

My attic hatch measures roughly 2' square. Presently, it has insulation on top of the hatch door (in the attic). Because some of the hatch sticks up above the insulation on the floor of the attic, ...
10
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2answers
2k views

Do I need to insulate exposed foundation in my garage?

I have a 2 story split-foyer ranch. The bedrooms upstairs are above the garage and noticeably colder than the rest of the house (I live in Connecticut so winters get pretty cold). There's no climate ...
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0answers
74 views

Faced or unfaced insulation in floor above unconditioned crawlspace?

I'm insulating my floor. I live in a dry climate with cold winters and R-30 is recommended. I am insulating from below so cannot staple the facing paper. What is typical for this application? ...
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0answers
98 views

Rockwool / Mineral wool for my crawlspace?

Should I spend extra money and insulate my crawlspace with rockwool? I like that it is easy to install, that it stays in place and looks clean up above. It does cost more per sqft. I have a 1980's ...
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3answers
99 views

Would enveloping an attic in insulation cause any problems?

My attic currently has batt insulation between the joists, and a second layer of batt insulation on top of that. In the summer, the second floor is quite a bit warmer than the first floor. I'm ...
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0answers
29 views

Saturated insulation Under Mobile Home

I live in a mobile home on piers, in Florida.There was a broken water pipe to the outside faucet that I have fixed, but, during the leak all the insulation under my mobile got saturated. How can I ...
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1answer
64 views

Attic Insulation (floor or ceiling?)

Is it better to insulate in between the slanted ceiling joist Or floor joists in the attic if you have a whole house attic fan? Or both? In long: Out of budget reasons I was thinking of leaving ...
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1answer
52 views

Replace batt insulation or leave it?

Currently, the exterior walls have batt insulation. It has the paper face on one side. A few months ago, I removed a window due to watered down drywall caused by the window. At the time, I didn't ...
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1answer
70 views

Can a recessed IC-rated housing be in contact with nonmetallic sheathed cable?

I have recently installed 8 of these 5 inch insulation contact rated remodler housings in my kitchen. Two of the holes I made were close to an existing nonmetallic sheathed cable (NM) running through ...
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0answers
28 views

how install insulation to pitched ceiling with no measurable space between ceilng and roof

how can insulation be applied to pitched ceiling covered with dry wall so thin when new roof was installed nails came through the ceiling. once sprayed insulation is sprayed on can it be covered with ...
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1answer
22 views

Concerned about the outcome of insulation fibers

I was working in an attic ,an exhaust fan was turned on I immiedetly breathed and was choked with the insulation to the point I couldn't breath ,I now feel it in my lungs as uncomfortable ,any idea if ...
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2answers
234 views

How do I insulate a strip foundation from below?

While building a strip foundation (a concrete wall starting several feet below ground) I have to insulate it from moisture because otherwise moisture will get into the foundation and into the ...
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2answers
118 views

Insulated radiator foil

I'm concerned that the insulation/ cardboard foil that's behind my recessed radiator is asbestos. My house was built in 1960. Does anyone know if they made that stuff with asbestos? Before purchasing ...
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2answers
3k views

Can I put rigid foam on studs to prevent thermal bridging?

I'm re-insulating an interior wall & putting up drywall to replace the old plaster walls. Rather than screwing the drywall directly into the studs, I'm toying with the idea of putting a 1/2 inch ...
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6answers
22k views

Should I encapsulate my crawl space?

Our home was built with a dirt crawl space that is about 2' from ground to bottom of floor joist. The floors are insulated with fiberglass held up (where it hasn't fallen down) with wire rods. The ...
9
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7answers
13k views

How do I remove blown in attic insulation?

I want to replace the drywall ceiling in my house. It's old and has been painted over a million times. Home was built in the 50s. How do I replace the ceiling without replacing the insulation? Or if I ...
0
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3answers
57 views

Is the material encasing a steam heating system asbestos? How can i determine this?

I'm looking to purchase a home. It has a steam heat boiler system, wrapped in a white material that seems "old". Is it possibly asbestos? How do I test to see?
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1answer
83 views

Can you paint Dow THERMAX WHITE FINISH INSULATION?

Can you paint the insulation boards after installing them? This would be for an attic interior installation. Then could I skip the dry wall? How good would it look compared to drywall?
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1answer
61 views

How can I increase the effectiveness of the A/C in a hot 2nd floor converted attic master suite?

Just bought a 1940's masonry construction house. House has a finished basement (cold as a meat locker), first floor (comfortable) and 2nd floor (too hot). The 2nd floor is an attic that has been ...
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1answer
116 views

How do I dry up a stucco wall that presents efflorescence?

I have determined the source of the water and I would like to believe that I stopped that with a temporary fix (a large tarp that will cover my patio which used to collect water at the base of the ...
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2answers
6k views

Should I staple faced insulation batts to the face of the stud or the side?

I'm preparing to drywall my attached garage and have run into conflicting opinions on if I should staple the insulation flanges to the sides of the stud or the face. I live in the San Francisco bay ...
2
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1answer
133 views

Should I insulate my attic with a hot or cold roof?

I'm turning my 3rd floor attic into a usable space. It's a hip roof, 25' x 23', with one dormer. We just had new asphalt singles put on it and it was about 12 foot of ridge vent on the dormer / ...
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1answer
284 views

Insulating and reducing boominess of plywood subfloor

I have a plywood subfloor in a ground floor extension that is laid directly on the joists. The current floor is half solid wood tongue-and-groove laid on top of green fibre underlay and half fake ...
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0answers
45 views

How should I insulate my bathroom wall?

I just gutted my bathroom. I want to replace the insulation in the walls. Right now there is fiberglass insulation with a plastic vapor barrier. Behind that is a old cardboard like material that they ...
2
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1answer
160 views

Is it dangerous to use polyisocyanurate without covering it with drywall?

I would like to glue sheets of polyisocyanurate to one basement wall which is very cold in the winter. Due to plumbing and electrical panels, I will not be able to cover the polyiso with drywall. Are ...
0
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1answer
407 views

What type of insulation should I use if my in-wall oven is heating the surrounding cabinets?

We have an in-wall oven that is not properly insulated. It heats up the surrounding cabinet. The oven itself has internal insulation in good condition, but it is not strong enough to keep heat ...
10
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2answers
3k views

Mold remediation in crawlspace

Just bought a 25 year old home that has improperly installed insulation in the crawlspace. The insulation is fiberglass rolls with a paper backing, and is installed with the paper facing down, toward ...
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0answers
68 views

Super-Insulating a Crawlspace

I am getting ready to have a contractor insulate my crawlspace. The exterior facing walls of my crawlspace are about 2" above grade, with the remaining 2 ft 6 in - 2 ft 10 in below grade. One of the ...
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0answers
46 views

How to insulate existing roof space

I have an old (1950's), victorian esque, 2-story, uninsulated, lath and plaster house that I would like to add some insulation in order to at least curb the hot/cold of the Inland Empire here in ...
2
votes
1answer
91 views

How are thermal (fire) barriers installed over foam insulation in a crawlspace?

I will soon be sealing my crawlspace with plastic sheeting across the floor and up the concrete walls. I plan on then adding rigid foam insulation. My reading of the Residential Code is that I will ...
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1answer
1k views

Spray Foam Insulation Health Concerns - Alternative Spray Foam Products

I am looking to gather facts (although I am sure there will be a fair amount of opinions) about spray foam insulation and the health concerns associated with the install and everyday living. I mainly ...
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3answers
2k views

Why is the upstairs a lot hotter in a 2 story duplex?

I've lived in my current duplex for about 5 years now and every summer, my upstairs portion of the duplex gets noticeably hotter than downstairs. I couldn't give an exact measurement but 10 degrees ...
0
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2answers
100 views

Considerations for spray foam insulation with roof replacement possible in about 10 years

We have an old house in the Philadelphia area which we bought last year. This has a slate roof and we were told by our home inspector that we'd need to consider replacing it in 10 years. It is the ...
0
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3answers
464 views

Is it okay to not have a vapor barrier in lightweight tiny house type construction?

So, I have a bit of an odd project. It is a bit outside of the box, and I'm looking for alternative approaches that stick with the theme (if the plan outlined below doesn't work, that is). ...
3
votes
3answers
121 views

Can I install insulation on the ceiling of an old unfinished basement?

Can I install insulation on the ceiling of an old unfinished basement? I have a bungalow home with hardwood floors.
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2answers
192 views

What's the right approach for insulating the slab & footings underneath a masonry fireplace/heater?

The fireplace will be located in the middle of the concrete slab (away from the foundation stem walls) so it will have its own footing. My impression is that footings should rest on soil & gravel ...
3
votes
2answers
75 views

Best way to stop boiler steam from entering attic

I have a cape cod. The boiler is in the basement and vents to the outside about a foot above ground level. I get a considerable amount of snow melt and ice buildup in the attic section directly ...
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3answers
164 views

How do I protect and insulate a ceiling built against the roof?

My upper floor used to be a large attic. Sometime in the past the entire space was converted to living space: 2 bedrooms, 2 finished closets, and two unfinished storage "closets". Much of the ...
2
votes
2answers
2k views

How can I reduce heat transfer around my window unit air conditioners?

I have three old window units in my house and they function as my A/C. I am concerned about the amount of heat seeping into the house and cool air leaking out around the A/C units themselves. They're ...
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0answers
106 views

Will insulating rim joist without sill plate lead to moister issues?

The house was built in 1930 and besides some bays stuffed with fiberglass the basement is uninsulated and unfinished. After two MN winters in the house I've managed to fill the larger holes but have ...
2
votes
1answer
70 views

Attic ventilation, do I have enough?

I currently have blown-in insulation, that reaches the top of the attic floor. I was told by several insulation companies that I need a R value of at least 49, meaning, I need to add a good 12-18" ...
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0answers
95 views

Garage Wall Question- Insulation and vapour barrier?

We live in Vancouver, BC, Canada. We are redoing the wall that separates our house from the garage. The wall is built with 2 by 6's and has been insulated with Roxul R20 thermal batt insulation. On ...
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1answer
102 views

will anyone stop laughing n thinking im crazy long enough to see theres a major problem(s) in my house? [closed]

As the title suggests, i have many issues in the home i purchased two years ago. And although, couuuntless hours attempting to unravel the mystery, and thhhhousands of dollars to fix the problems i ...
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3answers
61 views

Insulation type to use on a hinged metal attic door

In this question, I asked about the best type of insulation to use on a hinged metal attic door, when one is also concerned about heat entering around the edges of the door when closed. The answer I ...
1
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1answer
66 views

Best way to cover external XPS insulation

My house has a basement, and on the outside, there's a layer of XPS foam insulation on the outside of the basement wall, up to the grade. For most of the house, the sod goes right up to the house, ...