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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4answers
13k views

Why is one bedroom always colder than the rest of the house?

We have a two story home with 3 bedrooms upstairs. Home is 7 years old. One of the bedrooms is always around 5-6 degrees Fahrenheit colder than the rest of the house (when compared to the thermostat ...
0
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1answer
180 views

Insulate garage ceiling

I want to insulate the ceiling of my garage, to make the family room above it warmer. The problem is that the garage has a finished ceiling (no exposed beams), so how to I affix the insulation to the ...
2
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6answers
2k views

How do I keep my house cool especially my terrace during summer?

I live in Bangalore in an apartment on the top floor and during summer, my terrace (built of concrete) absorbs a lot of heat. When I come home and switch on the fan, it ends warming my room and it is ...
2
votes
1answer
48 views

crawlspace insulation

I have crawlspace with an earth floor. it is approx. 24" from the ground to the floor joist. I have 6 mil poly on the ground. I have vents that will be opened in the summer and closed during the ...
2
votes
2answers
208 views

What can I fill a trench around my house with to avoid creating a drainage issue?

I am planning out my footing insulation job. Right now it's a pretty standard floating slab-on-grade with footings extending down a few feet, and the footings are uninsulated. A ring of concrete was, ...
0
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1answer
77 views

Proper order of operations for re-doing windows, stucco, and footing insulation

I have three big projects coming up: Replacing all the windows and a sliding glass door Adding 2 inches of rigid foam insulation to the exterior and re-stucco-ing Adding rigid foam insulation ...
4
votes
3answers
494 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 ...
0
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1answer
66 views

Is insulation blockinng airflow of my vented soffit?

I have insulation shoved in front of my vented soffit's should the insulation Be there It was already there when we moved I didn't think much of an till I started doing some research after I blew in ...
2
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2answers
63 views

How to check the type of installed insulated glazing

In the Netherlands, insulated glass is rated by a standardized rating system, classifying it into 3 categories by the u-value: HR : U value between 2.0 and 1.7 HR+ : U value between 1.6 and 1.3 ...
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2answers
133 views

What are my insulation options around a shower?

I'm remodeling my bathroom and shower and I'll be replacing the insulation on the external wall. This wall is the "back" of the shower (opposite from where the water supply lines are). With this in ...
0
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1answer
39 views

Worth it to add footing insulation if there's already a thermal break?

I've been considering insulating the outside perimeter footings of my 1972 ranch house in northern New Mexico. The slab-on-grade it's built on (that constitutes the subfloor) reaches a temperature ...
3
votes
2answers
174 views

Is it safe to put insulation next to knob & tube wiring?

I have a room that has some really ugly cheap panelling on the walls. I want to rip it out & replace with drywall. While I'm at it, I'd like to add soundproofing insulation between rooms & ...
6
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5answers
13k views

Is there an NEC-compliant method of repairing minor damage to electrical wire insulation without a junction box?

While trying to pry loose a stubborn cable staple that fastens a 14-gauge electrical cable to a stud, I accidentally tore a very small hole through both the outer jacket and the insulation around the ...
1
vote
2answers
660 views

How should I fix incomplete insulation on a skylight shaft?

I recently bought a house and am looking at doing improvements and repairs, but unfortunately I don't have a lot of experience or knowledge in such things. We had a home inspector look over the place ...
0
votes
1answer
102 views

Turning a mobile home with a basement into a recording studio

I recently moved into a mobile home that has a basement. The basement was an apartment, but had multiple issues with mold and frozen/broken water pipes. The owner was prepared to demolish the entire ...
7
votes
4answers
696 views

How to properly insulate bedroom

I live in an 80-100 year old house (not sure of exact age...my great grandfather built it, and it has been passed down for a few generations). He built it out of whatever was cheap at the time, so in ...
6
votes
1answer
616 views

Venting the attic space during summer to cool the house

The air in my attic gets superheated during summer, from the sun baking the (clay? terracotta?) roof tiles (I live in Sydney, Australia). I have good ceiling insulation, and even put in some sarking ...
0
votes
0answers
221 views

Is it safe to fill in or insulate the space in my walls around my fireplace flum?

Moved into a new home and I noticed something about my fireplace. I have a large brick enclosure that surrounds my wood burning fireplace and when I was up in the attic I noticed that the space ...
1
vote
1answer
63 views

When to use EPS instead of XPS (aka Styrodur [TM] and Styropor [TM]) for insulation?

What are the pros and cons of expanded polystyrene foam (EPS) (known as BASF Trademark Styropor) and extruded polystyrene foam (XPS) (known as BASF Trademark Styrodur) cards for thermal insulation ...
2
votes
2answers
559 views

How should I insulate this basement wall?

I've been doing a lot of reading. I live in Maryland, not particularly cold. We have an 8 foot ceiling in the basement which is poured concrete built in 1973. Only about a foot is above grade. I've ...
2
votes
1answer
121 views

What type of insulation can I use to insulate around my furnace exhaust?

I've got a cold breeze blowing through my basement, originating from where the furnace exhaust turns vertical. What type of insulation can I stuff in around the exhaust, to stop the cold air? This ...
0
votes
0answers
39 views

Minimum covering of brick wall for insulation purposes

There is a brick wall in our condo that is part of the exterior building that was never meant to be used as an interior wall. We were hoping to insulate it and we saw recommendations for using XPS ...
0
votes
1answer
75 views

Help translate terminology relating to flat roof construction

I just bought a house which had an extension done 12 years ago. I am about to do some work in this area and want to understand what has been done before. Below is a screen shot of the bits of the ...
1
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1answer
103 views

Add blown in insulation by hand

I have a few small areas in my attic that don't have sufficient insulation. The insulation already in place is blown-in. How practical is it to fluff up blow-in insulation and deposit it by hand in ...
26
votes
4answers
5k views

Should I agree to have more insulation added to my attic?

I have a 6 year old home with about 12 inches (R-30) of blown-in insulation in the attic. Recently door-to-door sales representatives for an insulation company offered a free inspection and quote to ...
0
votes
1answer
66 views

should i remove trim before caulking window

For weatherization purposes, is it worth removing the trim around windows (and sliding doors, etc) and filling the gaps behind the trim with spray foam (or perhaps caulk?), or is it acceptable simply ...
3
votes
3answers
2k views

Should I replace old blow in attic insulation with new roll out insulation?

I have attic filled with old grey blow in insulation. I estimate it to be 20-30 years old. I suspect that it causes a lot of dust in a house. Plus any work in attic would stir it and some will end up ...
3
votes
2answers
3k views

Should I cover a skylight well from the inside?

I made the mistake of having a Velux skylight installed in my bedroom. The installation was done by pros, both inside and out, and it has never leaked through 2 hurricanes. The installation was done ...
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vote
2answers
94 views

Will blown in insulation help in this situation?

I'm in the process of renovation of a 1945 house. Originally built with a flat roof, tar and gravel. At some point a gable roof was constructed over the original flat roof. Space between the ceilings ...
1
vote
1answer
151 views

What to do first in a house with poor thermal performance and high energy bills

I just moved into a house and am a little bit disappointed in its thermal performance so far. It's winter and cold outside, and the furnace heats the house up pretty quickly, but then the house gets ...
0
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0answers
93 views

How can I prevent my garage soffit vents from pulling in sewer vent smells?

My garage has a ceiling with fiberglass insulation over plastic air spacers leading to vents under the roof shingles. There is no plywood or drywall over the insulation. The walls are insulated and ...
0
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1answer
84 views

Should I remove, or work around dividing basement walls?

The basement of my house is bare concrete floor with bare concrete block walls. I'm in Canada and would like to (and should) insulate these walls, at least the above-grade portion, which is about ...
2
votes
3answers
121 views

Will removing the insulation from an unfinished basement cause it to be a lot colder?

We live in upstate NY and the house has an unfinished basement. It's waterproofed with cinder block walls and a concrete floor. There is no framing, no drywall. However someone put up this hanging ...
1
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1answer
68 views

Covering insulation in the garage

In my garage, the owners put insulation between the studs to insulate, but didn't cover one of the walls with sheet rock. It's just a wall of insulation that is starting to fall out. Can I put ...
5
votes
3answers
4k views

What material should I use to insulate floor over a bumpout?

My dining room has part of it bumped out about 2 feet overhanging from the foundation. The floor over this overhanging part gets cold in winter and I'm thinking about insulating below it. I've done ...
3
votes
2answers
3k views

Can I use Rigid Foam Insulation instead of fiber insulation?

I have a question: Can I use Rigid Foam Insulation instead of fiber insulation on outside walls from the inside of the house?
1
vote
1answer
49 views

How to insulate slab that's been extended?

I bought a house built on a concrete slab on grade. It's an older house, so no part of the slab was insulated. At some point in the past, previous owners decided to pour concrete around the entire ...
0
votes
2answers
131 views

Crawl Space Encapsulation Question

I live in Georgia (around the Atlanta area) and recently discovered mold in the crawl space of my home (I plan to have the mold professionally removed). My crawl space is about 30' by 15' (4' to 15' ...
2
votes
3answers
17k views

Should I install a vapour barrier if I'm using rigid foam insulation?

I'm re-insulating a room in my house from the inside. I've read that polyisocyanurate (polyiso) rigid foam insulation is the best R-value, so I plan on using that. Details: The house was built in ...
2
votes
3answers
98 views

mold problem in basement

I had some insulation put on half my basement wall. Since then I have been having a problem with mold.I know my basement walls leak. Could wet insulation cause mold? If so is it bad mold. Alls I know ...
4
votes
4answers
3k views

How effective are outdoor foam faucet covers to prevent freezing?

Everyone seems to suggest using those styrofoam faucet covers to help prevent the pipes associated with the fixture from freezing. They're cheap so I have them anyway (plus I'm not in a hard ...
3
votes
2answers
1k views

Do I need to replace soaking wet insulation resulting from a plugged A/C drain?

I had a company install an A/C evaporator unit on my existing heating system. A plugged drain caused the plastic pan inside the evaporator to overflow with water, which then ran out through the metal ...
1
vote
1answer
371 views

Can you remove a tin roof and install insulation and re-attach the tin roof?

Hello from Hobart Tasmania. I have purchased 1930's weatherboard cottage with a tin roof. The roof is insulated in the main part of the house (i.e., in the attic) but the additions on the house are ...
3
votes
3answers
8k views

Should I drywall and/or insulate my garage wall?

I'm in the process of a few projects in the garage, including raising the ceiling and insulating with spray foam. This has left me with a fair amount of leftover fiberglass batts. There is a room ...
16
votes
5answers
3k views

How can I insulate my garage door?

Over the past year I've been converting our integrated garage so that it's a usage space. I've painted the walls, got lighting, power and water connected (To allow for a washing machine to be ...
1
vote
3answers
2k views

Can the blanket Insulation in my basement be left in place when refinishing?

I'm thinking about finishing my basement. It currently has the blanket insulation that the builder installed when we built the house last year. I'm unfamiliar with this product. Is it meant to be used ...
1
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2answers
157 views

Preventing a frozen pipe on an extreme weather night

Last week, we had a night that got down to -18F. In the middle of the night, the cold-water pipe going to the kitchen sink froze (but luckily did not burst). After some investigation, it turns out ...
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2answers
227 views

Heating issues with slab foundation 50 year old home

I put a new furnace in (97% efficiency) because this home is so cold on the floors that my feet are cold anywhere I walk. Now have heat vents in ceiling but not helping any. Always cold, especially ...
0
votes
2answers
141 views

Insulation to condition attic space

I have a two story 1916 foursquare home in Ohio with spacious attic and basement. Before I purchased it, the HVAC system was redone by installing two independent furnaces/blowers (one in the attic and ...
2
votes
1answer
193 views

Why does my house feel colder in one area after installing blown cellulose insulation?

I recently insulated my flat roof with blown cellulose insulation. I installed two vents on the roof as well. The house used to warm up well at 72°F. In order for our bedroom to be warm we have to ...