Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [underlayment]

118 questions
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How can I prevent an above-ground pool underlayment from failing due to erosion at one location?

I have had an above ground pool since 2008. The pool was installed professionally. I have had to replace the liner 3 times, professionally installed as well. We have talked with the pool installer, he recommends sand. I really want to try something…
Jennifer
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What underlayment should I use to reduce traffic noise under a hardwood or bamboo floor?

I'm in the process of renovating the 2nd story of my New England 1.5 story cape-style home. New OSB subfloors are down with Liquid Nails and deck screws over 5 weeks ago. I'm on to flooring now. I don't have much experience with wood flooring, so…
OneHander
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Does cork flooring underlayment have to be glued down?

I'm finally getting around to installing an engineered floating floor in our living room. It's 1/2" thick. I am looking at using 1/4" cork underlayment underneath such as this from Home Depot. It mentions 'cork underlayment adhesive'. Is this…
DA01
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Can I install heat mat and backer board over cork flooring?

I am installing a new bathroom floor. I plan on getting an electric underfloor heating mat, 2 backer boards for under the heating, screed the mat and tile over this. My question is can I place the back boards on the cork vinyl(even though it's got…
Jamie Smith
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What type of underlayment should be used when installing engineered floors?

I'm going to install floating engineered wood floor in a 3rd floor condo. It has plywood subfloor. My biggest concern is the noise of walking on the floor that people below me will suffer. My question is, does a good/premium underlayment help…
zihaoyu
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Soundproofing a floor: How about cement backer board w/ Green Glue and mass-loaded vinyl?

I've been researching soundproof underlayments for floors, but the selection seems to be very paltry. It appears that you're pretty much stuck with mass-loaded vinyl (MLV), QuietWood, and a few other sheet-type materials. The bad part is that…
oscilatingcretin
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What glue should I use for glue-down engineered flooring installation?

I bought a roll of FloorMuffler UltraSeal underlayment (essentially, sealed high-density foam) at Home Depot for this project. The instructions are very specific about which adhesive to use: "To be used with FloorMuffler HPA adhesive only". This is…
user443854
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Should I continue to remove the cement board, or just remove the tiles?

I'm in the middle of replacing the tile in my bathroom and started to take off the backer board but now I'm wondering if I should've just cleaned off the top of the boards and reused it. The backer board is nailed to the floor over thin set. Both…
Henry Ong
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Tiling over old 2x6 tongue and groove subfloor. Underlayment? Levelling?

So my house has 2x6 car decking/tongue and groove/whatever-you-want-to-call-it subfloor that I am going to tile over, both in the kitchen and the bathroom. The rest of the floors are 3/4" oak as you can see in the pictures. Underneath the subfloor…
tbox
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Proper Orientation for Plywood Subfloor under 3/4" Hardwood

I recently purchased a house in New Jersey and the 2nd floor was filled with old carpet that we wanted to replace with hardwood flooring. I ripped up the carpet only to find particle board under all of it. I proceeded to remove all the particle…
Matt Cannon
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Securing plywood underlayment to timber sub-floor

I am laying 12mm plywood on existing timber flooring (before laying Hardiebacker board & ceramic tiles). Apart from screwing the ply to the sub-floor, should I also use grab adhesive or thinset mortar? The reasoning for thinset (I'm told) is that…
BlazeyBoy
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Does it make sense to put quality (=pricy) underlayment over 3/4" subfloor+1/2" extra plywood layer?

I have standard subfloor + 1/2" plywood on top, to correct for joists going different directions, so that all hardwood boards can be laid one direction for a clean look and avoid sagging where they would go parallel to the joists. The sagging…
Marius
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Is it recommended that 1/8 thick plywood be used as underlayment?

Redoing bathroom floor. After removing tiles and underlayment and linoleum, the floor that's left is decrepit, uneven, wavy, has some old plumbing holes. It is not rotted though, the wood is sturdy. I'm going to use Ditra. With Ditra, is it…
Noob
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Do I need to remove cap nails before re-roofing?

If I have existing decking with old tar paper that I want to remove the tar paper and install synthetic underlayment, do I need to remove all existing cap nails in addition to the tar paper or can I leave the cap nails if none are protruding? There…
aqua0322
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Is underlayment necessary in a room over a garage?

It is my understanding that underlayment beneath laminate flooring reduces sound between floors, i.e. for the room below. Is there a functional purpose beyond reducing noise in the room below? I'm installing laminate in a room over a garage, and I'm…
jn29098
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