Impact Barrier QT Flooring Underlayment

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Impact Barrier QT Flooring Underlayment

By adding Impact Barrier QT Flooring Underlayment to your flooring systems, you can lower the noise levels in surrounding spaces while meeting design requirements.

Made of 92% recycled rubber, our Impact Barrier QT Flooring Underlayment is ideal for most floor finishes, including concrete and wood-framed construction. Install it under hardwood, tile, carpet, laminate and more. Each underlayment floor barrier arrives in 48-inch wide rolls in three different thicknesses to make it easy to cut the right size for any space.

In addition to its superior soundproofing abilities, the Impact Barrier QT Flooring Underlayment is resistant to mold, mildew and compression. This durability aids in extending the flooring underlayment’s life span and effectively reduces noise year after year.

Since the underlayment is almost completely recycled, it is an environmentally friendly option for hotels, homes, offices and other building spaces looking to lower their noise levels.

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Next month is AMI’s Birthday! We are starting the party early. Celebrate with our staff with 7% off all materials.

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Weight 125 lbs
Options Low Duty (LD)
Medium Duty (MD)
Heavy Duty (HD)
Dimensions LD) 4 ft. x 75 ft.
(MD) 4 ft. x 30 ft.
(HD) 4 ft. x 15 ft.
Thickness (LD) 1/8 in.
(MD) 1/4 in.
(HD) 3/8 in.
Weight (LD) 120 lbs.
(MD) 100 lbs.
(HD) 100 lbs.
Coverage (LD) 300 sqft
(MD) 120 sqft
(HD) 60 sqft
Availability Usually ships in 1-3 business days

High-Quality Flooring Underlayment

Our Impact Barrier QT soundproof underlayment is the perfect way to soundproof the floor of just about any room. This high-quality but affordable flooring underlayment is suitable for homes, restaurants, offices and more. This material adds less than ½ inch of floor height while providing better results than most popular materials like plastics, felt, roofing membranes and cork.


Works With Virtually Any Floor You can use our versatile and highly sound-absorbing flooring underlayment with:

  • Carpet
  • Tile
  • Hardwood
  • Laminate
  • Stone

Impact Barrier QT Flooring Underlayment is made of environmentally friendly materials, with a composition of 92 percent recycled tire rubber. You can handle it easily and install it without worrying about your effect on the ecosystem. It earns points in two LEED categories and passes the most stringent indoor air quality tests.

Use it to soundproof a carpeted floor in your study, a vinyl floor in your kitchen or a hardwood floor in your dining room. Use it to improve sound quality in your office or to protect your recording studio from unwanted sound. This versatile material is easy to install and you can order it in multiple thicknesses to suit your specific needs. You can install this underlayment under just about any grouted, glued or floating floor. Waterproofing options are also available.

We’re offering incredible performance, a lifetime warranty, and an environmentally-friendly underlayment that outperforms all the competitors! Impact Barrier QT is perfect for all types of flooring – tile, stone, laminate, hardwood, vinyl, carpet, etc. With multiple thicknesses available, waterproofing options, and easy installation, what more could you possibly ask for in a floor barrier?

Our Impact Barrier QT is engineered to provide the highest IIC rating improvement, with results backed by over 200 independent laboratory and field tests. It easily outperforms cork, felt, plastics, and roofing membranes.

Impact Barrier QT is used directly under floor finishes and offers anti-fracture crack bridging.

Perfect for: multi-family housing, high rises, hotels, condos, single family homes, and office buildings. Use under ceramic tile, stone, brick, marble, pavers, laminate, hardwood, engineered wood, vinyl, parquet, and carpet.

Technical Specifications

Type A Hardness: 40 durometer (ASTM D2240)

General Application: Can be installed under most types of grouted, glued, and floating floors.

Indoor Air Quality: Meets all established indoor air quality standards

Testing: ASTM E2179, E492, E90, E1007

Features / Benefits


Meets or exceeds tough building code requirements while adding less than 1/2″ of floor height

Our Impact Barrier QT is engineered to provide the highest IIC rating improvement, with results backed by over 200 independent laboratory and field tests. It easily outperforms cork, felt, plastics, and roofing membranes.

Impact Barrier QT is used directly under floor finishes and offers anti-fracture crack bridging.

Made in the USA Made of 92% Recycled Materials


Green Information:

Have you ever wondered what happens to your old car tires? It turns out that their life is far from over after they’ve reached their limit. Recycled tires get a second chance at life in products like our Impact Barrier QT!

Impact Barrier QT is made from 92% recycled tire rubber – an environmentally responsible solution for sound control.

Additionally, Impact Barrier QT earns points in 2 out of the 6 LEED categories and passes the strictest indoor air quality tests, so you don’t have to worry about dangerous VOC emissions.


Multi-family Housing, High Rises, Hotels, Condos, Single Family Homes, and Office buildings. Use under Ceramic Tile, Stone, Brick, Marble, Pavers, Laminate, Hardwood, Engineered Wood, Vinyl, Parquet, and Carpet

Installation Details

Tools Needed: Utility Knife, Straight Edge, Tape Measure

Materials Needed: Duct Tape for the seams

Customer Reviews

Average Customer Ratings: 4.8 (34 reviews)

The times I talked with you on the telephone and corresponded through email you have been very helpful and efficient. I would highly recommend to anyone!

– S. Cimino, PA

I have emailed a lot of different manufactures and I have to say your customer service is head and shoulders above all of them. I emailed your company at about 9pm my time and when I woke up the next morning you had already answered my question and then the follow up was a few hours later. I am impressed. Thanks a lot for the quick turn around!

– E. Gustafson, NV

I just wanted to send a quick thank you for your rapid response and helpfulness. I very much appreciated it. You have been responsive in every way all through the process. It has been a pleasure doing business with you and your company.

– T. Alexander, CA

I just wanted to let you know that in the end, sealing the air spaces on this door worked just fine and took care of the problem.

I really appreciate you taking so much time to share your expertise with me, and in particular recommending I try the simpler solution before investing in more expensive noise barriers. That is a big credit to you and your business.

– Mike

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If you need a quote quickly and would rather talk to a warm body, then dial 1-866-949-9269. No pushy sales guys…promise.

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