SKU: 48157397017

Delta 328-sq ft Standard 0.3125-in Flooring Underlayment

Sale price$147.63 Regular price$164.03
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

Delta 328-sq ft Standard 0.3125-in Flooring UnderlaymentDelta DELTA FL Moisture Resistant Flooring Underlayment Roll A premium polypropylene underlayment designed to create a sealed vapor barrier over concrete floors, keeping basements warm and dry. The dimpled DELTA FL membrane installs quickly and provides a strong, even subfloor with minimal height increase. Key Features: Moisture Protection: Sealed vapor barrier helps prevent moisture rise from concrete slabs Basement Comfort: Thermal break makes

Delta DELTA-FL Moisture-Resistant Flooring Underlayment Roll

A premium polypropylene underlayment designed to create a sealed vapor barrier over concrete floors, keeping basements warm and dry. The dimpled DELTA-FL membrane installs quickly and provides a strong, even subfloor with minimal height increase.


Key Features:

  • Moisture Protection: Sealed vapor barrier helps prevent moisture rise from concrete slabs
  • Basement Comfort: Thermal break makes floors feel warmer and drier
  • Strong Subfloor: Provides a durable, even base for laminate installations
  • Low Profile: Adds only 5/16-in (8-mm) to floor height for minimal headroom loss
  • Easy Installation: Roll format with tape seams for fast, straightforward setup

Specifications Table:

Specification Details
Collection Name UNDERLAYMENT
Type Roll
Coverage Area 328 sq ft
Length 65.5 ft
Width 4.75 ft
Thickness 0.3125 in
Material Polypropylene (high density polyethylene enhancements)
Antimicrobial Yes
Cushioning No
Grade Premium
IIC Rating 20–25
Moisture Resistant Yes
Mold/Mildew Resistant Yes
Package Quantity 1
R-Value per Inch 1.92
Sound Absorbing Yes
STC Rating Less than STC-30
Vapor Barrier Yes
Warranty 5-year limited

Frequently Asked Questions (FAQ):

Q: What flooring types can be installed over this underlayment?
A: Laminate flooring can be installed directly on DELTA-FL; use appropriate subfloor panels where required by local codes.


Q: Is it mold and mildew resistant?
A: Yes, the polypropylene membrane is moisture, mold, and mildew resistant.


Q: How thick is the underlayment and how much height will it add?
A: The membrane thickness is 0.3125 inches and adds approximately 5/16 inch (8 mm) to floor height.


Q: What is the coverage per roll?
A: Each roll covers 328 sq ft (4.75 ft W x 65.5 ft L).


Q: Does it provide sound reduction?
A: Yes, it offers sound absorbing properties with an IIC rating of 20–25.


Elevate the Basement: A Warm, Dry Foundation for Luxe Floors

DELTA-FL lays a sleek, dimpled foundation that transforms chilly concrete into a cozy canvas for refined finishes. Its discreet profile delivers a clean, even base while quietly guarding against moisture. Pair it with rich laminates for a seamless, sophisticated look—your floors will feel warmer and more inviting. Consider it the essential first layer for effortless, luxurious living from the ground up.


Create a warmer, drier, and stronger floor—add Delta DELTA-FL underlayment to your project today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 48157397017

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4.9 ★★★★★
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Emily H
Charlottesville, US
★★★★★ 4
Too harsh on my sensitive skin for daily use
This cleanser contains a variety of emollient and moisturizing oils, but it also contains potassium hydroxide, which indicates saponification, a process that turns oil into soap. While it has the appearance of being an oily liquid, it foams up nicely on wet skin to create a luxurious lather. It has a fresh, clean soapy scent. I can't quite place it, but it reminds me of something from a long time ago. It is a little powdery and perhaps more of a mature scent, but I really like how clean it smells. Unfortunately, I find it to be quite harsh on my skin, which is likely a result of the saponification of the oils. One day of use here and there will be fine for me, but daily use makes my skin quite dry. In fact, it makes my skin squeaky clean, which is not necessarily a good thing. It is a shame because the scent is so nice, and I love the oil-to-foamy-lather formulation. Another issue is that the dropper on the bottle arrived clogged. It is really puzzling because the cleanser seems to be completely liquid. I ran the dropper under very warm water for quite some time in an attempt to clear the clog, but I was unsuccessful. So, in using the product, I've just been pouring it into my hand. This could also be contributing to my issues with dryness, as no matter how hard I try to dispense a small amount, pouring the cleanser out of the bottle inevitably results in my using more than would have been dispensed from a dropper.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2025
D
Verified Purchase
Diana
Battle Creek, US
★★★★★ 5
Collagen Eye Patches
These are the best under eye patches that I bought. I have tried others, but none provided the results that these did. I had visible results that lasted 12 hours. Puffiness reduced, smooth skin, rejuvenated look. I will be buying more when my supply is up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
R
Verified Purchase
Rosey87
Cuba, US
★★★★★ 4
Instant feeling of coolness but hoping I got what I paid for.
The box received isn’t the same as advertised but close. She picture. This is only second time trying a set from this box. They are soft and cooling. No unpleasant smell. It makes it fell like a spa day. And Hope to see results with use. At this point not breakout or reactions. That’s a good thing! Just not seeing results yet. Give it time, I know.
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Reviewed in the United States on January 20, 2026
M
Verified Purchase
Magical Finds
Massapequa, US
★★★★★ 5
Very easy to use and gives good moisturizing as well
Honestly here’s how this goes . When I first wake up after a nights rest I have the worse eyebags . So I ordered these and gave them a try . After washing my face I applied these , I kept them on for 30 minutes . When I removed them I noticed a significant amount of puffiness gone , however there was still puffiness there . So I then applied plexaderm on top . The results with both these two products are a welcome outcome . Just on there own they do a pretty good job , however with the plexaderm I got an awesome outcome .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
H
Verified Purchase
Heather M. Herr
Boise, US
★★★★★ 5
Great product! Must try!! 🤍
I don’t typically leave reviews but I had to with this! 🤍 I purchased this in a bundle with the moisturizer and under-eye patches. I’ve only used this maybe 2 or 3 times and my skin looks so much better. I just turned 40. My skin tone has been uneven, just overall unhealthy looking and wrinkling for years. Now it’s soft and smooth and looks great. I’ve never been a person that had good skin in the past but I am that person now. I am so impressed and this stuff is worth it for sure! I will continue to purchase it! Also noticed, because it got on my lips, my lips look better too. They stay dry and chapped due to a medication I was on many years ago. NOTHING helps my lips but this stuff has made them completely healthy and the dryness/chap is completely gone! Only 2 times using but I noticed improvement after the first use! Also note, a little goes a long way. The bottles are small but you don’t need a lot per use. Also, I typically have very dark under eyes. Both genetics and sleep deprivation cause this for me. I’ve dealt with it every day for many years. Even in my teenage years and twenties. I can never fully cover the darkness, but I’ve used the eyepatches once and the serum and moisturizer twice, and my under eyes are looking better and less dark too. I’m just overall so happy with these products! I’m so happy I stumbled across this product and decided to give it a chance! 🤍🤍🤍
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Reviewed in the United States on June 20, 2025

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