Hardwood Flooring Underlayment Q&A

Question 1

Will this also work for nail and glue flooring? View answer

Asked 4 ´years ago

Question 2

Howdy! When installing this which side goes up? Blue or White? View answer

Asked 4 ´years ago

Question 3

Is this good to use over asbestos tiles? View answer

Asked 2 ´years ago

Question 4

Can it be installed on a concrete slab? View answer

Asked 2 ´years ago

Question 5

Can this be used under marmoleum? View answer

Asked 1 ´year ago

Question 6

If you don't use Kahrs branded underlayment does it nullify Kahrs warranty? View answer

Asked 5 ´years ago

Question 7

What type of material is this underlayment made from? View answer

Asked 5 ´years ago

Question 8

Do you sell 100 sq ft rolls of 1/4" thick CORK UNDERLAYMENT? View answer

Asked 5 ´years ago

Question 9

Can individual rolls be shipped? Is freight, which costs more than the product,the only option? View answer

Asked 2 ´years ago

Question 10

Is the 3mm okay to use under the Amorim Wise waterproof cork flooring installed over wooden subfloor? How about in a bathroom? View answer

Asked 4 ´years ago

Question 11

You state that the cork is mildew and moisture resistant. Are there chemicals/biocides like Microban or others added to make it so? The biocides do not have any smell and continue emitting the life of the product. View answer

Asked 4 ´years ago

Question 12

Can the cork underlayment be used as shelf liner for kitchen. Are the glued safe for food contact? View answer

Asked 1 ´year ago

Question 13

I have 4 areas that need to be tested. Do I need 4 kits? View answer

Asked 2 ´years ago

Question 14

We plan to float Marmoleum Click tiles in rows on the diagonal in our rectangular kitchen. What is the best direction in which to lay the QuietWalk Plus -- on the diagonal, lengthwise or crosswise? View answer

Asked 3 ´years ago

Question 15

In 2021 you wrote in a response "Kahrs does not warranty cork underlayment usage under their floors." Is it still the case? View answer

Asked 5 ´months ago

Question 16

Is this suitable for using on a concrete subfloor, under engineered hardwood with a 1/4" cork underlay? View answer

Asked 5 ´years ago

Question 17

Do you have this available in 1/2� thick? View answer

Asked 2 ´years ago

Question 18

Is this good to use around the perimeter of expanding floating wood floors. I need something to seal the 1/4 space that does not off gas. I also would like something under my house (exposed to moisture and cold) to seal seams between OSB boards? View answer

Asked 4 ´years ago

Question 19

Can you use this underlayment under floating cork floor? View answer

Asked 2 ´years ago

Question 20

Can multiple layers of this be used in some spots to level off a slanted subfloor? View answer

Asked 8 ´months ago

Question 21

My contractor installed the silicone paper with the shiny side facing down underneath our solid hardwood floors. Below our subfloor is a �beam crawl space. What effect might installing the silicone paper upside down have on our floors? View answer

Asked 2 ´months ago

Question 22

Can I get a pdf with the specifications for this product? View answer

Asked 1 ´year ago

Question 23

Is the MP Global Moisture Block what you recommend for under cork flooring on concrete? View answer

Asked 9 ´years ago

Question 24

We are planning to install this under floating cork on top of an unsealed concrete basement floor. I understand this will protect the cork from moisture damage...however, is it possible that mold will grow between the plastic vapor barrier and the concrete? Thanks. View answer

Asked 3 ´years ago

Question 25

You mentioned Moisture Block as being good for small rooms. My living room is 17 by 30, and I will be using the click waterproof cork. Will the Moisture Block work? Thanks. View answer

Asked 4 ´years ago

Question 26

Can I install MP Global Moisture Block directly on a concrete slab and your Quiet Walk Plus without microbials over it with laminate planks on top? View answer

Asked 3 ´years ago

Question 27

Do I need moisture block under Marmoleum click when installing over wood subfloor in bathrooms? View answer

Asked 1 ´year ago

Question 28

am in a new build and upstairs has chipboard flooring (particle board) which is full of VOCS. Is there anything I can do to make it less toxic prior to laying hardwood floorboards? thanks View answer

Asked 5 ´years ago

Question 29

Can it be used on walls as a vapor barrier? View answer

Asked 4 ´years ago

Question 30

Can this be used to cover dirt wall in old basement? View answer

Asked 5 ´years ago

Question 31

What is the difference between the Moisture Block Pro and the Moisture Block? Can I use the two products interchangeably? View answer

Asked 1 ´year ago

Question 32

Wondering what your recommendation is for underlayment for cork click type, floating flooring. it's new construction, concrete slab (not heated), single story. My understanding is that moisture barrier is all that's needed. Is that correct? What's your recommendation? View answer

Asked 9 ´years ago

Question 33

HELP! We have a 2 inch pine T&G floor in our cabin that doubles as our floor and subfloor over an unheated crawl space. We suspect mold is coming up from the crawl space and need to seal off the pine floor. We would like to put cork down … what barrier do we put down over the pine and under the cork? The pine floor is finished with 3 coats of Ecos paints brand tinted varnish. View answer

Asked 3 ´years ago

Question 34

I'm making 16.5" high raised cedar planting beds for vegetables. Is MP-Global-Moisture-Block safe to use to line the inside of the planting bed (to block moisture from the cedar wood planks)? Is it safe for the soil and vegetables to stay in contact with this lining?Also, is this product still bio degradable? How often should I replace this lining?Or, this product is not designed for outdoor use in this way? View answer

Asked 5 ´years ago

Question 35

I need to build up a concrete garage floor can't afford cement can this work under tile? View answer

Asked 5 ´years ago

Question 36

I like to know if you have a 'green moisture barrier' for a floating floor. The Room is 180 sq feet. I'm also concerned about the bamboo creaking a bit? View answer

Asked 6 ´years ago

Question 37

What material is this product made of? View answer

Asked 4 ´years ago

Question 38

Hello, I have extreme multiple chemical SENSITIVITY. I need a vapor barrier membrane for my dirt floor crawl space. It needs to be free of formaldehyde, bleach, petroleum free, so the smell doesn't come up into home. Also need chemical free spray foam too or something to seal under floor joists. Crawl space is 3 feet high.Do you have a shellac that would not crack to cover a wood floor? View answer

Asked 5 ´years ago

Question 39

Will this waterproof a bathroom floor when used under Marmoleum Click tiles? View answer

Asked 4 ´years ago

Question 40

Can I use MP Global Moisture block in my bathroom under the cement board for tiling? View answer

Asked 5 ´years ago

Question 41

We are buying a zinus mattress for our camper, our bed is a slide out and people are having mold form underneath their mattress, would this work as a moisture barrier? View answer

Asked 4 ´years ago

Question 42

Can I use the MP Moisture Block with real wood floors? I see the package only says laminate and engineered. View answer

Asked 1 ´year ago

Question 43

On the sample for Moisture Block it says "It is recommended to also install a moisture resistant film over concrete or any substrate where moisture is a concern." So does that mean an additional plastic film along with the Moisture Block? Trying to understand what to do on a concrete basement floor under waterproof cork (interlock, no glue). View answer

Asked 3 ´years ago

Question 44

Hi, So I am looking to put down carpet tiles that I got online in my rental apartment but notified that the most recent ones I ordered did not come with a rubber backing and was looking at this product as a potential solution. The reason for this project is to protect the hardwood floors I have underneath as I have a cat that is in her senior years and is bound to have future mishaps. Would this help to protect my wood floors underneath from cat urine? View answer

Asked 3 ´years ago

Question 45

Can I use QuietWalk with Moisture Block and Lifeproof floor over concrete? I understand the Lifeproof warranty issue. View answer

Asked 2 ´years ago

Question 46

how much is the overlap? View answer

Asked 5 ´years ago

Question 47

Sounds great but can I special order this product larger than 100 sq feet? View answer

Asked 4 ´years ago

Question 48

PS Dos this product offgas any VOCs or exempt VOCs? View answer

Asked 4 ´years ago

Question 49

Does this product contain any biocides, fungicides, mildewcides or flame retardants? Is it 100% polyethylene? Is it made with recycled materials? View answer

Asked 4 ´years ago

Question 50

Would this work for an earthen floor vapor barrier w ground and gravel/sand as subfloor? View answer

Asked 4 ´years ago

Hardwood Flooring Underlayment Q&A

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