Questions tagged [underlayment]
The underlayment tag has no usage guidance.
44
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Karndean over underlay
I'm laying Karndean Korlok planks. I've taken out the engineered wood floor I'm replacing. I have a Tredaire underlay below over the concrete, that for acoustic insulation. It's 6mm thick rubber. Do I ...
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Proper installation when replacing particle board underlayment with 3/4 advantec over 1/2" plywood subfloor?
My home's flooring was originally 1/2 plywood subfloor with 3/4 particle board underlayment. I have since removed the particle board and plan to replace it with 3/4 Advantec. My current plan is:
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How to install “subfloor” over top of existing hardwood
I recently removed a few layers of different flooring/underlay to expose original hardwood flooring. I’ve been told by two different hardwood refinishers/installers that the hardwood isn’t salvageable ...
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How best to remove flooring and underlayment from our tile floor
We are renovating a 1961 rural house in France. The ground floor is garage/basement, but both the first and second floors (in European terms) are a 30cm hard concrete subfloor with 10cm (4 inches) of ...
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Can 23/32 advancetech subflooring be installed over 3/4 wood plank subfloor?
We are working on laying vinyl plank flooring. After getting the carpet up, we found that the subfloor was particle board with glue stuck all over it, so we decided to rip it up and go with 23/32 ...
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Can you wet shim above a tub?
Is it possible to wet shim around a newly installed tub to bring all the walls plum and flat before tiling? Using a foam waterproof backer board and want to make sure that I’m laying tile the correct ...
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Stone tile flooring with acoustic sound reduction requirement in condo
We just closed on a new condo and want to replace some of the old carpet with stone tiles. However, the HOA has a sound reduction requirement where the floors must pass acoustic testing with 55 IIC or ...
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Installing Plywood Underlayment over Plywood Subfloor
We are renovating an apartment and trying to install a 3/4'' solid hardwood floor in the living room. We pulled out the existing carpet along with a 5/8''particle board underlayment. Under that we ...
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Underlayment (vapor, moisture and sound abatement) under marble tile floors
Do you use an underlayment (vapor, moisture and sound abatement) on top of concrete subfloors and under marble tile flooring? Ultimately the marble will not be installed using traditional mudding ...
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Is underlayment necessary for laminate over dricore?
We have new dricore subflooring in a basement that is partially above and partially below grade. There have been minor water seepages in the past thru the slab, which is why we put in the dricore.
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Underlayment for Enclosed porch
I want to install porcelain tile in my glass enclosed porch. Presently there is a 6” x 5/4” pressure treated lumber for the floor. The floor is only 2 years old and in very good condition. Can I use 1/...
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is cork underlayment on a concrete basement floor a workable proposition?
Next up in my basement finish process are the floors. We've decided to go with vinyl for the bathroom (and under-stairs closet), and carpet everywhere else.
I'm planning on putting in a 6mil plastic ...
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Can you put Grace I&W shield HT over existing granular ice shield?
Replacing shingles with metal roof, and putting down Grace I&W shield. There are 2 rows of existing granular ice shield present that won't come off. I see references to not going over it with ...
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Installing plywood underlayment over bathroom subfloor for tiling
I want to install plywood underlayment to a bathroom subfloor before I do the tiling. I could not find answers to some questions and hope this group can help:
Can I use Deck screws for this? I found ...
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What is the difference between Ardex K22 F and Liquid Backboard?
I noticed that Ardex has a few different self-levelers. For example, K22 F and Liquid Backerboard. They both seem to serve the same purpose - self-leveling below flooring without the need for metal ...
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Enclosing an outdoor deck
I have a free-standing outdoor deck. It is 2 ft above the ground and the current decking is 1/2" x 6" with 1/2" spacing. It is in good shape. The deck is 12 ft x 16 ft. I want to ...
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Floating floors have soft spots and bubbling - Pulte
https://imgur.com/a/HHlTYmA
I got a new build and it has been a headache. The floors had soft spots and bubbles and I finally got the builders to replace the flooring but it's even worst than before. ...
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Preparing 100 year old wood floors for LVP
I have a 1906 farm house with horribly damaged wood floors. I would rather refinish the hardwood floors but in this case it is not worth it. There is water damage that would need to be repaired and ...
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Subfloor or underlayment?
So, I have been doing a lot of research and could not find a solid answer. There seems to be different opinions.
For my half-bathroom renovation, I am starting fresh. For flooring, for the first layer ...
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Is GripRite Shingle Underlayment -LWE an OK replacement for Tyvek HomeWrap under vinyl siding?
I have a contractor replacing old aluminum siding with vinyl siding. The contract stated Tyvek would be used, but I just noticed today (unfortunately 2.5/4 outer walls are already 'finished') that ...
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Is there anything I should know before laying OSB underlayment on top of my subfloor?
I'm removing (painfully) all the particle board underlayment from the 1976 and replacing it with OSB so I can lay down some LVP.
The process seems simple. Lay down 4x8 sheets and screw into the joists ...
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Can I replace 3/4 particle board underlayment with 1/2 OSB?
I ripped up carpet to replace with LVP in my 1976 bi-level home to find 3/4 particle board on top of the subfloor. I then found out that the particle board should be removed.
I spoke with a friend who ...
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Replacing 2 layers of tile, can I put plywood + Ditra mat OVER lathe and scratch?
We're redoing our 2nd-floor 7' x 10' laundry room, including new / moved cabinets and flooring. The existing tile was ~1/4" lower than the vinyl plank outside the room, so I (naively) assumed we'...
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1/2" OSB underlayment + Durock VS 3/4" + Durock
I am planning my subfloor from the I-Joists up for a new build in my kitchen and living room. My thought, to minimize the transition between rooms was to lay 3/4" OSB for the living areas, and I ...
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Can I put plywood underlayment under Ditra/tile?
I'm taking up hardwood floor in a bathroom and will be replacing with tile. The hardwood was put in over wood chipboard(?) subfloor with 1/8" plywood underlayment. In order not to have a huge ...
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Pre-Padded Flooring
I am looking to install vinyl flooring in our basement which comes with pad attached. Can I use an additional pad?
Lots of research is finding conflicting answers, as well as from salesman from ...
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Vinyl Sheet Flooring -- Underlayment?
I'm looking at laying down some vinyl sheet flooring in my basement. Currently it's just a concrete floor with a layer of DryLok I've painted over it.
My question/concern is, do I need some type of ...
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Vinyl Plank Flooring Repair
Questions
Flooring was already done before. Removed a drywall in the kitchen recently and leaving the floor unfinished.
Removing the whole plank and add a new one is better? Or patching is better? ...
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Is Tri-Ply an acceptable underlayment for shingles?
My handyman wants to use GAF brand TriPly underneath the new shingles he's installing for the roof repair project. It's a small area and we had half a roll left over from the shed roofing project. Is ...
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How large of a hole can I cover with just 1/4" underlayment?
I am redoing a bathroom and as such I am moving the shower feed piping (~3/4" holes), the drain (~2" hole), and also an air return (4x8" hole). I plan to use porcelain 12x24" tiles....
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12x24" Porcelain Tile over 2x6x1.5" T&G Spanning 48" Beams
I have some questions in regards to installing 12x24" porcelain tile over 1/2" plywood underlayment that sits above 2x6x1.5" T&G subfloor that is supported by posts and beams on 48&...
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For a floating floor - Is it safe to use an underlayment above an existing vapor barrier?
I have a concrete slab floor, and it was very uneven, so I placed a vapor barrier down (6ml poly) and then I nailed 3/4" plywood overtop. This fixed a lot of issues with the floor being uneven.
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How should we complete this laminate installation?
Problem
I purchased some pergo gold underlayment and pergo waterproof laminate flooring and installed it in the kitchen with my brother. This was our first time ever installing any type of flooring, ...
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Several layers of polyethyleen sheets as a vapor barrier under underlayment & laminate
I am putting 7mm laminate on concrete. I have underlayment (5mm) that requires >0.2mm polyethyleen (PE) sheet as a vapor barrier.
Unfortunately, I couldn't get >0.2mm PE but got 0.16mm PE ...
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Laminate floor directly over plywood subfloor ok?
We just ripped up carpet in a room and found that it had 1/2" plywood over the joists and 5/8" particle board on top of that.
We are planning to install 10mm laminate flooring in this room. ...
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What underlayment material is this? Is it safe?
This underlayerment was found in a bathroom. It was under a cement layer with tiles on top. The house was constructed in the late 1980s.
What material is this underlayerment made of? Is it safe to ...
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Can I use underlayment to increase thickness level of engineered flooring
I need to increase the 1/2” thickness of the engineered flooring as much I can. Is it ok to use 1/8” underlayment. I plan to nail not float.
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Is subfloor / underlayment for tile different for a small area
Normally for plank subfloor one is supposed to add 1/2 inch of plywood plus cement backer board for underlayment. For a small area say 4 feet by four feet is all of this necessary?
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Vinyl Flooring Over Uneven Concrete Slabs
Our attached garage was added many years after my house's 1959 construction by basically walling in a pre-existing carport. The floor, therefore, is made out of several concrete slabs and part of what ...
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How to apply floor patch on underlayment for sheet vinyl
I am going to put down some new sheet vinyl in our bathroom. I have put down plywood underlayment according to the instructions. I am now trying to fill in the indents of the screw heads (#2 square) ...
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Vinyl Plank Flooring underlayment and backing options
I'm deciding on vinyl plank flooring for a kitchen in a rental property and I'm seeing different options. Cork backing feels incredibly nice under the feet. Other product have a rubber honeycomb ...
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Can I use an underlay on glue down vinyl planks?
I would like to reuse some luxury vinyl planks (5 year old Armstrong Luxe Plank with FasTak pressure-based adhesive, just under 4mm thick) that I pulled up from my concrete basement floor and put them ...
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Does combining a hybrid vinyl plank with attached underlay and external underlay help to achieve even greater soundproofing?
Hybrid vinyl planks come with acoustic underlay attached to them. For example the one that I am after has LnTw of 40 db.
The question is if I install that on top of an extra 2mm acoustic underlay, say,...
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What tape is appropriate for underlayment?
I am installing bamboo flooring with Floormuffler underlayment. This type includes a moisture lip & adhesive for joining the long sides.
I have a few seams to join that don’t have the lip/adhesive,...
