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Questions tagged [fiberglass]

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1 answer
87 views

Fiberglass fills attic rafters, planning another 3" of fiberglass perpendicular to rafters, but how should I navigate my attic after installation?

I have fiberglass filling my rafters, very nearly to the top. To meet my insulation target, I plan to install another 3" layer of fiberglass perpendicular to the existing fiberglass... but this ...
2 votes
3 answers
4k views

How can I waterproof an exposed porch with a basement room underneath?

I am replacing a front porch, it currently is an elevated porch with your typical dirt and debris underneath, and it is an open porch. I intend to excavate a new basement room underneath it, cutting ...
2 votes
1 answer
41 views

Uncovered fiberglass in exterior wall?

We are removing a corner prefab wood burning fireplace. One wall behind the fireplace and part of the ceiling are exterior structures. When we took the drywall down, we found that the fiberglass at ...
0 votes
2 answers
115 views

Garage fiberglass ceiling is wet

After living approximately 1 year in my new home, this October I started to insulate my garage by putting fiber glass - with the intention of putting drywall after. Couple of weeks ago I have noticed ...
0 votes
1 answer
131 views

What could a water stain on a fiberglass tub mean?

I have a water stain (that looks like a water stain would appear on wood) in my fiberglass tub. It’s where the tub meets the wall on the opposite side of the shower head. There is a water supply line ...
4 votes
2 answers
4k views

What's my health situation like living in an exposed fiberglass insulation for 2 weeks

My attic floor is covered with fiberglass insulation. I go to the attic very often. Sorting out winter/summer clothes. Or I go up to search for stuff as my attic is a short term storage. 2 weeks ago, ...
0 votes
2 answers
443 views

Bad Odor after spraying Bleach

Looking for some advice and help to resolve an issue were having after spraying bleach on the backside of my bathtub. Reason for doing this we had a rat climb up the plumbing and make a mess inside ...
0 votes
0 answers
90 views

Fiberglass insulation above grade in basement

We have an unfinished basement that we want to finish. The walls are bare concrete and there is no subfloor. In the exterior, it seems there is a vapor barrier (we have the tar marks on the wall) . We ...
3 votes
2 answers
900 views

Is it worthwhile to cover fiberglass insulation with Tyvek under a house?

I have a raised home in New Orleans, where the weather is hot and humid 2/3 of the year, but it can get quite cold for brief periods in the winter. The house is about 100 years old and there is some ...
0 votes
0 answers
82 views

Stripped screw on fiberglass electrical box

I made the never-again mistake of using a few fiberglass electrical gang boxes on my recent remodel. It seemed like fiberglass would be better than the plastic boxes, but I learned my lesson there, I ...
2 votes
2 answers
168 views

How do I assess different insulation recommendations? [closed]

We live in CT. I don't know the technical terms but our house configuration is: Split level ranch (two floors plus attic) Gas furnace and gas water heater in the basement Air handler in the attic Air ...
0 votes
1 answer
149 views

Allergy symptoms after attic insulation replacement

Had my 20 year old attic insulation replaced with new blown-in white fiberglass by professionals yesterday. Family is now having significant allergy symptoms especially when central air is. Purifier ...
1 vote
1 answer
179 views

Trim a prehung fiberglass door for a nonstandard front door height

I intend to replace my old front door. It is currently a steel left-hand inswing door. The slab itself is 36"x77.5". The ceiling is very short and this door opens within an inch of the ...
0 votes
1 answer
1k views

How to fill the cavity in a recessed door panel

I'm restoring the door to my dumb waiter. The door is 1" thick, plywood core, tin exterior (1/32"); the door is original and dates back to 1939. I want to make the door completely flat, then ...
2 votes
1 answer
1k views

Fixing micro-cracks in a fiberglass tub

I am experiencing leakage from my tub. It is inconsistent with a small amount of water, but it happens to leak onto the computers below. After multiple plumbers reviewed the plumbing and found no ...
1 vote
0 answers
35 views

How to repair a small gouge in a fiberglass shower insert? [duplicate]

I have a small gauge (about penny size) towards the bottom of a fiberglass tub/shower combo insert in the house i bought. The rest of the insert is in great condition, so really don't want to replace ...
0 votes
1 answer
141 views

Fiberglass vs wood door

How can I tell if my door is made out of fiberglass or wood? It has a wood grain texture but I can’t tell if it’s a real wood door or a fiberglass door.
1 vote
1 answer
1k views

How far should a wall for a bathtub extend beyond the tub? [closed]

I am installing a new 30" wide fiberglass tub/shower kit. Does anyone have any suggestions on how wide the wall for the plumbing needs to be? Since I am installing a 30" wide tub. Do I make ...
0 votes
0 answers
43 views

Fiberglass Bathtub Wall Slanted Down - Slip on Faucet Gap Too Large to Fix with Caulk

Copper stub-out with a slip-on faucet that requires a minimum 1.75 inch length. The bottom-half of the faucet base fits flush against the fiberglass tub wall, but there is a significant gap between ...
-1 votes
1 answer
43 views

flooring cover near shower

I have a fiberglass shower, and the image below shows a slight tilt in the floor covering; likely due to water. Can I use something like a Silicone tape? I want to make sure that the water doesn't get ...
1 vote
2 answers
1k views

Can I recaulk joints in a fiberglass shower surround after removing old caulk?

There's a fiberglass shower stall in my bathroom. It consists of two wall panels and one pan, and there seems to be glue/caulk in the seams between them, as shown in the photos. I wonder if I can ...
-1 votes
2 answers
177 views

Repairing damaged fiberglass [closed]

I know this doesn't necessarily apply to home improvement, but I figured the bit about fiberglass repair might be useful to others here. I have a paddle board that has several cracks or damaged areas ...
2 votes
1 answer
9k views

is it ok to peel paper from faced fiberglass batt insulation?

An above grade portion (wood framing) of my basement walls (in unfinished furnace room) is currently insulated with faced R19 fiberglass batts . It is very drafty because the batts dont fit perfectly ...
6 votes
8 answers
102k views

Is there an approved way of fixing a cracked Fiberglass Tub/Shower?

I noticed a crack in the bottom of my tub, and noticed that it flexed when I stepped near it. I called in 2 companies to give me an estimate on repair. The first, proposed a more or less ...
0 votes
2 answers
154 views

Should chunks of fiberglass looking material be present in my bypass humidifier?

See the attached photo. It's only really visible on the top here, but this fiberglass looking material (duct liner?) is present on all four sides. Should I remove this material, or otherwise work to ...
0 votes
1 answer
2k views

Insulating under the staircase from the crawl space - faced fiberglass insulation ok?

Our house is built on a slope, so the staircase to the bottom floor is right above the crawl space (vented; climate zone 3). The staircase is carpeted, and there's no insulation underneath. I can ...
0 votes
1 answer
142 views

Leaking stand-up fiberglass shower

I have a small stand-up fiberglass shower that is leaking water into my closet which is right next to it. I have pulled back the carpet and dried the water up, but it keeps leaking water. Even after ...
0 votes
1 answer
208 views

Is there a way to determine if cold spots on a thermal image are due to water?

Continuing my bad insulation smell saga, I've been exploring the room in question with a thermal camera. I have attached an example image that shows a cold spot in the wall (rest of wall is ~20°C). Is ...
0 votes
2 answers
125 views

What is the proper name for this rubber edging trim for fibreglass?

I have a fibreglass seat pan, and it was damaged. What's the correct name for the edging stuff? I hope that I can find something large enough to cover the road-rash. There's a springy steel-...
0 votes
1 answer
1k views

Locating the source of a fiber glass smell, or finding wet, dirty fiberglass insulation?

There is one room in my house that smells strongly of (what I think of as) fiberglass. Others have told me that fiberglass does not smell, unless it is dirty / wet / etc. They may be right, I do not ...
1 vote
1 answer
276 views

Can I use my extra attic fiberglass on steam pipes?

I am about to insulate my steam pipes, which are currently exposed. I have a ton of extra attic insulation left over from another project. Can I use this (and some duct tape for shaping) on my steam ...
1 vote
1 answer
258 views

How do the pieces of this fiberglass tub surround attach to each other?

I have a Jacuzzi-brand tub with an integrated multi-piece surround that came with our house when we bought it. Probably installed in the 90s if not earlier, but I don't really know. This bathroom is ...
0 votes
1 answer
3k views

fixing crawlspace insulation, can/should we use r-30 batting meant for attics?

Our kitchen floors (hardwood) are freezing, and we found that crawl space insulation below those floors appear to be poorly installed. First, the insulation appears to be installed upside down, with ...
0 votes
1 answer
667 views

Fibrous, crumbling papery material falling off old mattress — what is it? Asbestos?

I’ve got a bed/mattress about 40 years old in my spare bedroom in Sweden. The bottom of the mattress is covered in this fibrous paper that has started to crumble on to the floor. It turns in to dust ...
4 votes
4 answers
14k views

Should I insulate between my basement and main living floor?

I'm in my first winter in a ~140 year old home and attempting to improve efficiency / comfort. The home has a concrete basement (originally sandstone foundation) which is conditioned space, but in ...
0 votes
2 answers
204 views

How can I add more insulation to my finished attic walls without trapping moisture

I have a finished attic that has a kneewall insulated with fiberglass batts, insulation facing in. The batts fill the depth of the wall cavity completely to the end of the stud, there's no more room ...
1 vote
1 answer
2k views

Fiberglass appearing in home dust

Thin and very straight fibers have been appearing in household dust, primarily in the room which I occupy. I suspect these fibers to be fiberglass. These fibers shine/glint back if illuminated with a ...
0 votes
1 answer
876 views

Batts of fiberglass inside cavity return duct

My HVAC return ducts are run through the building cavities. In some places, this means a return duct is run through the joists in the basement ceiling (with a metal liner covering it). In more than ...
2 votes
2 answers
96 views

Is this fiberglass insulation?

I'm having a difficult identifying the type of insulation behind a section of drywall. The home was built in North America around the 1940s. It's undergone several rounds of renovation projects and ...
1 vote
4 answers
519 views

How to temporarily join fiberglass poles?

I need to be able to repeatedly attach and disconnect two solid fiberglass poles. The poles themselves will be the same diameter (~3/8"). The joint doesn't need to be stronger than the poles when ...
0 votes
0 answers
356 views

Can you use a Swiffer dry cloth to pickup fiberglass dust?

Had to rip out some internal duct insulation in the mechanical room and I want to clean up invisible and small leftover fiberglass fibers. I also mistakenly used a shop vac initially so I'm afraid ...
0 votes
1 answer
51 views

Is there a reason to choose taped fiberglass bats vs fiberglass tubes when insulating heating ducts?

I'm going to insulate the 6" round metal heating ducts in my crawlspace, and I have pretty good access. It's the SF bay area, so it doesn't get very cold. Is there a reason to choose taped ...
3 votes
6 answers
15k views

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 ...
1 vote
0 answers
2k views

How can I repair a cracked inground pool step?

The top step into my inground pool is cracked. I saw Repairing cracked fiberglass pool steps but it references "years old" technique without a useful link. If someone can point me to that ...
0 votes
2 answers
4k views

How to add insulation to ducts in hot uninsulated attic?

I have central air with ducts running through the hot, uninsulated attic (there is blown-in insulation between the joists to insulate the rooms below). Fortunately it's only about 25 feet of ductwork, ...
2 votes
1 answer
92 views

Ceiling fiberglass getting yellow because of bad primer?

We started to prepare an old reinforced concrete ceiling of a panel building for painting. We cleaned off several layers of very old soviet wallpapers, glue, paint, putty and other stuff. Then we ...
0 votes
1 answer
3k views

How to polish an old dull fiber shower+tub combo?

I have a fiberglass bathtub and shower combo in a rental that's likely more than a decade old. The finish is very dull and feels almost matte to the touch. There are no noticeable scratches or peeling ...
1 vote
2 answers
459 views

New fiberglass batts near HVAC ducts

I have R19 fiberglass batts in my attic. There are large soft insulated HVAC ducts covering the batts in some places. I would like to put in new R30 on top of the R19. What is the proper way to ...
0 votes
2 answers
496 views

Need to develop a tapered spacer for under a car lift on an angled concrete slab [closed]

I need to fabricate/develop an angled spacer. 13 inch wide by 10 inch long, by 3/4 inch to 1 3/8 inch thick. This spacer is needed to go under two of the posts of a hobbyist car lift in my garage. ...
0 votes
1 answer
752 views

air gap between insulation batts and subfloor

I'm looking at the insulation in a crawl space below the first floor of my home. Joists are I-beams (12" deep, model TJI 350), 12" on center. Insulation is R19 fiberglass bats, tight-...