Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [foam]

12 questions
8
votes
3 answers

Spackling drywalls around plumbing pipes

What’s the best way to fix drywall holes ~1-1.5” on each side around pipes coming into the wall under sink. I’ve seen folks foam the holes around pipes, but it looks ugly. I was thinking to patch with spackling patch, but this would most likely…
Tagar
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3
votes
1 answer

How can I remove foamboard insulation from behind drywall so electrical box tabs have clearance to grab?

I'm planning on adding a lot double-gang old-work boxes to a wall that is made of 2" foam and 1/2" drywall on top of 2x4 studs. The tabs on old-work boxes don't reach far enough to grip the back of the foam, so I need to make some clearance right…
Brandon
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2
votes
2 answers

Is there any reason *not* to add shipping styrofoam pieces to wall insulation?

My basement walls are covered with a few inches of polyiso foam board with interior stud walls being built over the foam board. I have some extra pieces of foam board from the installation that I am going to add to a couple of the stud bays (a…
susie derkins
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2
votes
2 answers

Any considerations using spray foam to fill holes in bottom of cabinet where piping comes in?

In the bottom of my sink's cabinet, the piping comes in through generously sized holes. This area is a mouse hot-spot. They come into the cabinet through here, and so as part of my overall rodent control strategy, I am thinking about filling these…
whatsisname
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1
vote
1 answer

Do exposed foam insulation sheets present a hazard in a bedroom?

Insulation has been installed on my bedroom ceiling with the white foam side showing and the shiny side against the ceiling. Does the exposed foam side pose any dangers?
Sherry Montis
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1
vote
3 answers

What type of fasteners are used for fanfold XPS foam insulation?

I'm trying to figure out what type of staples are pros using for fastening fanfold XPS insulation? Most of the specs mention staples, but not the type, length or what sort of stapler. Fanfold XPS is usually only 1/4" or 3/8" thick.
J. M. Becker
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0
votes
1 answer

How to waterproof foam and pipes coming up through concrete ground

I have a bundle of foam and pipes coming up through the concrete ground in my backyard for my HVAC equipment. There is no conduit and the pipes and foam is all in ground contact and the concrete was poured around the bundle. How can I waterproof…
MonkeyBonkey
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0
votes
0 answers

Penetrations in spray foam roof

I'm doing renovations on my 60's house in the southern California desert and I need to make penetrations for plumbing vent pipe and a bathroom fan roof cap in a low slope spray foam roof but I haven't been able to find any information on the…
g-ulrich
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0
votes
2 answers

How to create a rounded, irregular mold for concrete

I’m interested in creating an organic rounded shaped mold to pour concrete into. It will be large, a coffee table and end tables. It has to be a pull apart mold, as I want to carve the shape on all sides, so it’ll be like a beach stone. What…
user159752
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0
votes
0 answers

PolyRenewal foam injection for settling slab foundation

My house is built on a concrete slab foundation and is 20 years old. Part of the slab, roughly 15'x6' in size under the kitchen, is cracking off from the rest of the foundation and settling down. In some parts inside the kitchen, edges of the…
Fijoy Vadakkumpadan
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0
votes
4 answers

Dense foam padding on plywood kayak shelf - what to use and how to attach it

I built a set of "shelves" in my garage that hold kayaks. Currently the surface the boat rests on is very smooth birch plywood. This is mostly ok, but I'd like to have some sort of dense foam between the boat and the wood, for a couple reasons: It…
The111
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0
votes
1 answer

Do I need house wrap if I'm installing ridgid foam?

I am replacing vinyl siding that was installed over old wood dutch-lap siding. Currently there is 1/4 rigid foam installed over the wood siding, which I imagine is needed for creating a flat nailing surface. There is no house wrap installed, and…
darkness
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