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.

Filter by
Sorted by
Tagged with
0
votes
4answers
45 views

Proper glue for sticking foam on window glasses? Strong enough, removable, and without gap

Winter is coming. I plan to stick soft polyethelene foam on window glass for thermal insulation. Last time I use Styrofoam glue, and it is a disaster. It is hard to remove it. It take hours with ...
2
votes
1answer
42 views

How to insulate metal roof on shed and avoid condensation?

I’m fixing up an old uninsulated shed. The roof — built of metal sheeting on plywood, nailed to the 2-by-4 rafters — needs to be insulated. What is the best way to insulate the roof that avoids ...
0
votes
0answers
38 views

Does this insulation need to be replaced? Does it contain asbestos?

This is a 60y old house but I am not sure when the bathroom that is downstairs was built this is in the ceiling and I would like to know what sort of insulation to use the bath tub that I just ...
0
votes
0answers
22 views

insulating under stair

Following on from my another question, I'm now looking to add insulation to my under stair storage cupboard. I want to add insulation to the back wall and floor. There is a damp proof course on the ...
1
vote
3answers
39 views

How can I insulate under flooring panels in my attic?

I am removing the original barely-still-there insulation in my 1950 attic (S. Cal.) and then sealing and then placing R 30 fiberglass batting. A problem I have is that about 5%-10% of the attic is ...
0
votes
0answers
44 views

West wall of house in Phoenix is cinder block with no insulation. How can I insulate it?

A north/south situated single level townhome in Phoenix has a west facing wall that bakes in the summer heat. It's about 10' tall. The interior walls are 8'. Both bedrooms and bathrooms are ...
0
votes
1answer
27 views

How can I insulate the door to my attic?

I have a 5 level townhouse; heat seems to come out of the area around the door to the attic in warm days. is it possible to add insulation to this attic and door? the attic is walkable and has plywood ...
0
votes
1answer
47 views

What kind of exterior wall insulation is this?

After some searching, I'm guessing it might be "encapsulated" insulation but I don't know. It's unmarked and, as you might see, it's it's tucked into the corner and bulging in the middle. I ...
0
votes
0answers
34 views

Installing Roof - What else should be done?

When installing a new roof, what other work would be convenient to do? Since I'm having a new roof installed, I'm curious if there is something I would regret not doing in a few years. Potentially ...
0
votes
0answers
25 views

Can drywall be attached directly to foam insulation or do furring strips need to be between them?

I have a basement wall that was recently finished with drywall and insulation. Instead of attaching the drywall directly to furring strips with foam under the furring strips, the drywall was attached ...
4
votes
1answer
194 views

How do I staple faced insulation to ceiling joists if the flange has been cut off for narrower spaces?

I'm insulating a detached home office/shed. For the ceiling, the rafters are 24in on center so I got 22" faced insulation for that. However on the ends of the structure, the rafters are only 21in ...
0
votes
1answer
25 views

Insulating shower exterior wall

Redoing a bathroom where one of the shower walls is an exterior wall. Framing is done with 2x6 and I would like to replace the current insulation pictured with XPS foam board. Due to my location, the ...
0
votes
1answer
16 views

Finishing attic with static vent

I have a 1920s building with a gable roof that has a 10' peak. I'm going to finish the space and had an engineer detail the specs for structural safety, but I'm stuck on the appropriate way to provide ...
0
votes
2answers
26 views

Can a wood cabin be laid directly on a existing concrete foundation if a DPC is added?

I am figuring out the foundation for a small wood cabin for my back garden, due to height being a premium I was wondering if I could put the wood directly on an existing garage foundation. Providing I ...
1
vote
1answer
49 views

Sistering 2x8s to 2x4 truss system for vaulted ceiling?

The Question (see pic below): Can I safely sister 2x8s to a 2x4 king post truss/open rafter system to achieve an insulated open ceiling/vaulted design. The Details: I have a garage that is 18 feet ...
2
votes
4answers
682 views

Greenhouse subfloor (greenhouse on top of concrete) — best material?

I'm putting together a greenhouse, 10x13-feet base. Unfortunately it will be on a concrete-paved section of my backyard, and I know it will lose a lot of heat to the ground via conduction in ...
0
votes
2answers
48 views

How to solve Hot Upstairs but cold basement

I have central air in my house(20 year old house). In my basement it gets cool, and cold air is coming from a vent in the ceiling. My upstairs gets really warm and humid even though central air is on. ...
1
vote
1answer
36 views

Faced or Unfaced Fiberglass in a basement stud cavity that has IPS Foil Board?

Insulating in Zone 5. Basement is 90% below grade, maybe 8" to 12" exposed foundation around the top of the basement wall. Applying R-6 Foil Faced Poly Iso to the poured concrete wall, then ...
0
votes
1answer
57 views

My oven insulation is burning when I bake [closed]

My oven burns every time I bake. The insulation always seems to light up when I use it. Also, some rats infested it a while back and really caused damage but they all died.
1
vote
1answer
21 views

Insulation with multiple polyester layers instead of one

I am getting 3cm thickness polyester sheets for free and while it could be great not having to buy insulation myself, I wonder is it a good idea to insulate it with multiple layers of these sheets for ...
0
votes
0answers
23 views

Vapor Barrier Under Insulation on Attic Floor

My brother tore out the mdf tile ceiling of his cottage and nailed down ~1x6 pallet wood on top of the ceiling joists in the attic. There are large gaps in the boards. On top of the boards, he rolled ...
0
votes
1answer
26 views

Faced or unfaced insulation

So my house was built in 1957, I have shiplap siding and behind black boards that are fireproof. On the photo you can see the exterior wall where these boards are. Should I use unfaced insulation or ...
0
votes
0answers
29 views

Possible moisture issue with partial insulation of unheated garage

I live in a zone 5 area in Ohio in a house build in the 60s. The garage is 20x20, attached to the house on two sides and shares a roof with the house. Current garage isn't insulated - the attic has ...
0
votes
1answer
25 views

HVAC: hot attic, system off, heat leaking in from supply vents

It’s summer, the attic is hot, our HVAC system is off, but hot air seems to be slowly coming in through the supply vents, making the upstairs bedrooms hot. It’s certainly normal for some warm air to ...
0
votes
1answer
33 views

Plumbing re-routed through attic

We recently had a leak under our slab foundation and ended up going with rerouting the plumbing through our attic. After it was done, we have noticed that there is now a distinct odor (of the PEX ...
1
vote
1answer
29 views

Type of insulation for flexible aluminum duct?

I’m replacing an undersized bathroom exhaust fan with a larger one that has a higher CFM. When switching the fan out, I want to add insulation to the flexible aluminum duct that goes from the fan to ...
1
vote
0answers
34 views

How to insulate a crawl space without an access point

I have a cottage that has recently been completely renovated but later learnt that the floor was not insulated because there isn't an access panel. The cottage doesn't have a crawl space the area ...
2
votes
2answers
43 views

Will replacing windows significantly reduce solar heat gain in summer?

A friend of mine is remodeling his 1980s house and was asking advice about keeping it cooler in the summer. The house currently has the original double pane windows, many of which have "popped&...
1
vote
3answers
37 views

How can I cut slots in the ground to install insulation panels?

To build a geothermal greenhouse, I need to insulate a thermal mass -- basically the ground directly the greenhouse. The insulation will be for the underground "walls" only, no floor, and 5 ...
1
vote
1answer
24 views

How can I insulate my porch floor?

I have a wooden screened-in porch on a cabin that I am remodeling, with approximately 30 inches from the ground to the bottom of the porch tongue-and-groove boards. I am considering insulating the ...
1
vote
1answer
46 views

Foam covering around foundation--what is it and can it be removed?

I recently moved to a new house. Portions of the foundation have some foam-like panels on top of it, in between the ground and the start of the siding. It's worn down, with holes in some spots, and ...
1
vote
1answer
40 views

How can I insulate the inside of a fire escape door?

At our office, we have a server room located on the southeast-ish side of our building, exiting onto a parking lot/loading dock area (a completely paved area with zero shade). The door is an emergency ...
1
vote
2answers
93 views

Air-sealing the eaves

I am trying to insulate and seal the eaves of a vented roof over a log house in order to protect the thermal insulation (flax batts in my case) from the outside air and liquid moisture (not vapor). ...
1
vote
3answers
76 views

Can insulation touch the roof sheathing in a sloped garage roof without soffit vents?

I am beginning to install fiberglass insulation in my garage and want know if I have done the ceiling wrong. The issue is that the insulation touches the roof sheathing in the sloped area below that I ...
0
votes
1answer
28 views

Insulation inside AC unit has mold and falling apart

I noticed the exterior on my AC units has small black circles and I assume it is mold. A few days ago the drain was plugged and the condensation all backed up inside the unit. I had the drain fixed ...
1
vote
3answers
93 views

If I run CAT5/6 cables parallel to electrical cables, is it possible to shield the cables with copper tubes to stop interference? [duplicate]

I'm remodeling my home and I wanted to hardwire some extensions of my ethernet near my 220v outlet, by near at least a foot away from it. I was wondering, would I be able block the interference if I ...
2
votes
0answers
26 views

Adding Extra Insulation to Rim Joist

I'm just beginning a basement finishing project, so I expect this is my first of many posts. Right now I'm wondering about whether it would be worthwhile to add insulation to my rim joists. I live in ...
1
vote
1answer
46 views

Is it normal for fiberglass to face down in basement?

Image attached below. Entire basement has the fiberglass pointed downward and the paper touching the ceiling above. Why wouldn’t it be the opposite way so the fiberglass isn’t just hanging down?
1
vote
1answer
27 views

Exterior air conditioning pipe insulation

I live in the Southern California desert and am doing some renovations to my house. Our AC line runs on the roof from the center of the house 25' to the west side and down the wall to where the ...
3
votes
1answer
101 views

Is this an acceptable way to fix garage roof condensation?

I'm in the UK. My garage has a corrugated metal roof with no insulation. In the winter, when it rains the underside of the roof drips. Not massively, but just enough to be annoying. The roof ...
0
votes
2answers
46 views

Is moving a desk upstairs/downstairs for comfort twice a year a sign of poor insulation?

In a side-split on three levels, four including the basement, the heating and cooling unit is almost new (2 years), and the heating/cooling unit was only available at 35% more cubic feet capacity than ...
1
vote
1answer
54 views

Insulating basement that's already framed with electrical run

First, let me own my novice DIY status and say I screwed up. I bought a new house last year in the Indianapolis area and immediately went to work finishing the basement. The builder attached batts of ...
0
votes
2answers
35 views

Under-slab insulation vs. slab perimeter insulation

Currently in the final planning stages of my new house ("raised ranch" style), and the first floor is going to be slab-on-grade. My current insulation plan has 2" of XPS under the slab across its ...
0
votes
2answers
127 views

Does plywood over rigid foam meet the fire barrier requirements?

I've seen a lot of discussion about using plywood instead of drywall over rigid foam insulation when finishing basement walls (here and here). As I look to insulate my basement, I have several reasons ...
1
vote
0answers
29 views

How do I design an ice house?

Where can I find how to design a cold room storage building? I have a 12x12 shed that I use as cold storage for tree seedlings for about a month each spring. The present construction is 2x4 walls ...
0
votes
1answer
32 views

Insulating and framing a basement after drain system and plastic vapor barrier installed

We had a moisture problem in our basement located in Minnesota. Recently some foundation water came up and ruined our carpet, when we tore out the drywall there was moisture build up and some mold on ...
0
votes
1answer
104 views

What’s this diagonal metal strapping between my studs?

So I’m trying to install a pet door and came across this between my studs. This is the second pet door I install and have never seen this. I’m in the dinning room and the wall is obviously an outside ...
1
vote
2answers
81 views

Worth going from R49 to R60 in attic?

We have about 3" of old insulation in our attic. We want to bring it up to R49 but I have read that some suggest taking it to R60 to get more energy efficiency. This may not be a question that can be ...
1
vote
2answers
25 views

Will blown-in insulation work directly on the back of 12" square ceilings tiles?

We're renovating an extremely old house that we use as a camp that had numerous issues. ( Originally built circa WW2, but has had some work done since then. We use it occasionally in the warmer months ...
1
vote
0answers
24 views

Mini loft conversion help (UK)

I have a very small loft (4sqm) that is part of an extension that sits above a utility room between my home and garage. I would like to turn the loft space into a small server closet due to a lack of ...

1
2 3 4 5
26