0838207000017

DMX 1-STEP

Model DMX 1-Step

Internet #204494289

Store SO SKU #1000289277

100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew

$72.00 /roll
  • Can be used with laminate or hardwood flooring
  • 100% Waterproof
  • Sound absorbing and evaporates moisture to eliminate mold

Frequently Bought Together

Product Overview

Your home and family deserve the best - choose DMX 1-STEP, the new standard in flooring underlayment. DMX 1-STEP space-age contoured foam and unique dimple design provides the ultimate in sound absorption while allowing air to circulate beneath your floors, evaporating trapped moisture and eliminating harmful mold growth. Installation is simple and fast - no tools required. DMX 1-STEP is your best choice for quiet, cozy and comfortable floors. DMX 1-STEP is the only dimpled underlayment that is approved by the North American Floor Association (NALFA).

  • For use with laminate floors and engineered hardwood floors in basements
  • Comes in 100 sq.ft rolls, weighs only 15 lbs/roll
  • Complete Vapor Seal with Vapor Tape
  • Easy to lay down
  • Easy to install; no special tools required
  • Only dimpled underlayment certified by North American Laminate Floor Association
  • Completely waterproof on both sides
  • Heavy duty plastic membrane encapsulated in HDPE foam
  • DMX 1-Step with its unique dimple design, allows air to flow under your floors so that vapor moisture can evaporate quickly, thereby eliminating the build-up of mold and mildew
  • DMX 1-Step does not require a complicated Calcium Chloride test of the concrete slab like foam underlayments
  • DMX does not specify a maximum moisture content for concrete; it is designed to evaporate moisture from concrete surface
  • Most comprehensive warranty in the business
  • Promotes healthy living environments
  • Comprehensive Strength 6,000 lb/sq. ft. or 43 PSI/ sq. ft.

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Customer Questions & Answers

63 Questions91 Answers

Customer Questions & Answers

100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew

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This question is from 100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
 
3 answers

How many rolls of Vapor tape will I need for 500 sq. feet area?

This question is from 100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
Asked by
Arlington Heights, IL
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July 9, 2016
How many rolls of Vapor tape will I need for 500 sq. feet area?
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Answers (3)

July 11, 2016
Answer: 
Each roll is 100 square feet. You will need 5 rolls.
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July 11, 2016
Answer: 
Hello Anyagrape,
For every 2 rolls of DMX 1-Step you need 1 roll of DMX Vapor Tape.
Customer Service
DMX
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Asked by
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July 11, 2016
Answer: 
I doubled over my joint lines (i.e. one down the seam and one on each side - three passes) and used just a little more than one roll of tape for each roll of underlayment. I had some house wrap tape on hand so I finished with that.
For 500 sq ft, I would get six rolls if you plan to do this method. Otherwise for a single pass of tape, 4-5 should be plenty.
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This question is from 100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
 
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So on the cement floor goes the dmx 1 then the laminated wood and that its?????

This question is from 100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
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June 25, 2016
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Asked by
Portland, OR
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Home Improvement Profile: DIYer
August 8, 2016
Answer: 
Here's what I did with success. Cement floor >> DMX >> Vapor Barrier >> Laminated wood flooring.
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June 27, 2016
Answer: 
Hello Antbe,
You lay DMX 1-Step directly on your cement floor (dimples faced down), you seal the seems with our Vapor Tape. You can install your laminate floor directly on top of DMX 1-Step, as long as the laminate has a minimum thickness of 8mm. Please visit our website www.dmx1step.com for more information.
Customer Service
DMX
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Asked by
Durham, NC
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June 26, 2016
Answer: 
Concrete slab covered with the DMX1. Make sure to tape all the joints where the the DMX1 pieces meet. Then either put OSB decking over it drilled and screwed into the concrete slab using tapcon screws in a 24" grid. Or, do what I did and attach 1x or 2x sleepers at 24" or 19.2" on center screwed to the concrete slab at 24" on center along each board and then glue and screw the OSB deck over that. Now, Read More
Concrete slab covered with the DMX1. Make sure to tape all the joints where the the DMX1 pieces meet. Then either put OSB decking over it drilled and screwed into the concrete slab using tapcon screws in a 24" grid. Or, do what I did and attach 1x or 2x sleepers at 24" or 19.2" on center screwed to the concrete slab at 24" on center along each board and then glue and screw the OSB deck over that. Now, install your flooring. Totally waterproof system. My sub floor was 7% moisture comtent! Awesome product. Read Less
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This question is from 100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
 
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Can this be used with just laminate flooring over a cement floor in the basement?

This question is from 100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
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April 30, 2016
I have a basement I am finishing with a cement floor. I want to use laminate flooring. Can I use just this subfloor to waterproof or will I need additional waterproofing? Basement is just damp and doesn't flood at all
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Asked by
Portland, OR
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May 14, 2016
Answer: 
Yes, this can be used under laminate flooring over a cement floor in the basement. I did the same thing for my basement and for added water proof protection I used a plastic sheet as a vapor barrier between the laminate and the UNDERLAYMENT.
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May 2, 2016
Answer: 
Yes, the underlayment can be used with laminate flooring over cement.
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May 2, 2016
Answer: 
Lexie:
DMX 1-Step will be perfect for what you are looking to do in your basement.
Feel free to visit our website www.dmx1step.com for more details.
Customer Service
DMX
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This question is from 100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
 
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Vapor Barrier?

This question is from 100 sq. ft. 44 in. x 27 ft. 6 in. Unique Air Gap Underlayment Prevents Mold and Mildew
Asked by
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February 10, 2015
Would I apply a 6mil vapor barrier over or under this DMX product?

I would be installing DMX over a concrete slab foundation.
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Asked by
Portland, OR
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August 8, 2016
Answer: 
In my experience, I have placed the vapor barrier on top of the DMX product. DMX is mildew resistant and its design allows for enough air flow to help evaporate small amounts of water when it gets wet. The vapor barrier would protect your flooring from any situation where water has come in contact with DMX.
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Asked by
Durham, NC
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July 17, 2015
Answer: 
This is the vapor barrier. I was going to use 6 mil poly and used this product in place of it. It is much better with the waffle pattern to allow for air movement. I love it!
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Asked by
New Jersey
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February 10, 2015
Answer: 
no - that would create a sandwich effect - trapping the moisture between the layers. just the dmx with vapor tape to seal the joints.
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Customer Reviews

Rated 4.2 out of 5 by 44 reviewers.
Rated 5.0 out of 5.0 by Great product! Very easy to install. I used this under tounge and groove subfloor in my basement and then covered it with carpet. August 2, 2016
Rated 5.0 out of 5.0 by Best basement underlay This product does exactly what it is supposed to. I bought 10 rolls to do all of my basement. Lay this down first on the bare concrete floor and tape all the seems with tuck tape and it will create a vapor barrier for the floor. Then installed 3/4 t&g exterior grade plywood. Then installed my floating floor with another vapour barrier The product is very sturdy so it will not flatten under the plywood. Installed last year before winter. No problems up to now and everything is nice and solid. May 16, 2016
Rated 4.0 out of 5.0 by Good so far I purchased the DMX after looking at Platon membrane and Dri-Core panels. The DMX product seems to be in between in terms of cost, though considerably cheaper than Dri-Core. I ultimately went with this over the Platon to get the foam layer that provides the insulation value. This was going down in a basement bed room in a new house that has a completely unfinished basement so far. The product was extremely easy to install. I suspected it would have a tendency to curl since it comes in a roll, but only the inside edge curled a little bit and it quickly relaxed. It is very easy to cut and the 1-Step tape goes on easy too. I bought two rolls of underlayment and two rolls of tape. The sq footage was right on the mark. This room is 192 sq ft and I had just a little bit of leftover. I doubled over the tape so there was a wider swath of type and I used both rolls of tape plus a little bit of house wrap tape I had on hand. I then put 23/32 T&G OSB on top. Even though I am doing a hardwood floor in that room, the adjacent room will be carpet so I didn't want a big transition between the two without the T&G under the hardwood. Even with just the T&G in place, I notice a huge difference in the floor temperature which is what I was going for. I would advise caution when walking on the membrane or rolling heavy equipment on it. Even though its floor loading is good once you get a floor on top of it, it can compress and invert the dimples with enough force. Dropping some plywood on top of it while you're working would certainly help. Now for the framing stage... July 11, 2016
Rated 4.0 out of 5.0 by So far so good I just installed this product on my basement floor. When I purchased it, I was pleased to see that they now attach a role of tape to it for sealing the edges. Overall, it installed quite easily. I put an excellent, commercial quality Wicander 10+ mm cork laminate directly on top of it and had no difficulties. The floor looks excellent but sounds a little hollow when walking on it. I also have a slate pool table on it and it seems to be able to hold the weight just fine. I'm hoping this provides a nice insulated, waterproof floor for this room. Fingers crossed. January 31, 2016
Rated 5.0 out of 5.0 by Awesome Purchase This is an absolute must have for basements or concrete floors. What I especially liked about it was that I didn't lose a lot of height by installing this in my lower lever on top of concrete. May 17, 2016
Rated 5.0 out of 5.0 by The BEST way to control moisture and give your floor a softer feel! I bumped into this product searching the Internet for a way to waterproof my basement floor. I emailed several questions directly to the manufacturer and they responded immediately with details on how to handle each situation. DMX 1 Step is easy to install and as I covered more of the concrete floor I started to notice that musty basement smell could not be detected in the areas I completed. The hardest part for me was drilling into the concrete floor to use the TAPCON screws. Buy a higher quality hammer drill and lots of drill bits. I installed 5/4 x 4 sleepers and then 3/4" OSB glued and screwed over top. The sleepers are installed 24" on center. The floor has the same kind of flex as the main level of the house. My wife loves the way it feels when she walks on the basement floor. The moisture control is allowing us to install hardwood floor in the basement. That is typically a no-no. I'm confident the DMX 1 Step is going to be the key to my finished basement not looking or feeling like a finished basement. It's a great product! July 17, 2015
Rated 5.0 out of 5.0 by Seems to be a quality product so far Installation went smoothly, and the material does a good job of support and cushioning from the outset. How well it will perform over time is an open question right now, but I like what I see. March 23, 2016
Rated 5.0 out of 5.0 by Amazing Bought this because we get small puddles in the winter we have yet to see any issues. Was very easy to put down April 10, 2016
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