SOUNDPROOFING CARPET UNDERLAY

Our collection of durable, effective Carpet Underlayments combine the noise-blocking effects of a Soundproofing Barrier with an impact-absorbing layer of premium soundproofing foam.
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Proven to work in applications just like yours.
When selecting a product, consider the traffic level, the condition of the sub-floor and whether the product you choose is specifically designed for floors.
- If the area to be treated is a high-traffic location, a hallway or public facility, you must use a product that contains closed-cell foam under the Soundproofing Barrier layer; open-cell foam will not last under heavy use.
- You will need our help in determining if you have an STC or IIC problem, each one requires different consideration; they are not the same thing.
- You must be aware of the conditions below the sub-floor to ensure that the problem will be fixed with an underlayment product only. We can fix the ceiling below also. Please refer to our Soundproof Ceilings for further information.
- Finally, make sure that the product you select is specifically designed for floors. Soundproofing Barrier alone will not work, nor will more layers of plywood. Adding standard building materials is not a reliable method for isolating floors.
Premium Underlayment
For your most demanding applications, we can combine foam layers as thick as 1/2” with a barrier layer of 1/4” to create a premium performance product. Adding 2 lbs sq/ft of weight insures maximum privacy. Our typical uses for this product are recording studios, commercial spaces, high-end residential and luxury yacht staterooms.
Ultimate Underlayment
Manufactured entirely of recycled rubber, Privacy Ultimate Underlayment adds 2 lbs sq/ft of weight in only 1/2” and provides superior wear resistance for any carpet. An added carpet pad is sometimes needed for residential when a luxury carpet is to be installed.
Performance Underlayment
For most applications our 1/4” premium foam, combined with a 1/8” Soundproofing Barrier layer will provide superb results. At 1 lbs sq/ft Performance Carpet Underlayment will add measurable privacy to your home. Instead of a carpet pad, Performance Underlayment is 3/8” thick, perfect for most carpet installations.
| Underlay | Total Size | Foam Size | Weight | STC |
|---|---|---|---|---|
| Premium | 3/4” thick | 1/2” thick | 2 lbs sq/ft | 32 |
| Ultimate* | 1/2” thick | n/a | 2 lbs sq/ft | 32 |
| Performance | 3/8” thick | 1/4” thick | 1 lbs sq/ft | 27 |

Do you have questions?
We have the answers you need!With Sound Isolation Company you will get the help you need: expert design, product selection and installation instruction. We have the experience you need for a partnership that will work.
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Our soundproofing products and materials are in stock and ready to ship today from 10 different distributor locations.
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