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Home Depot's Best Underlayment smoothes out little sub floor imperfections while quieting impact sound and floor to ceiling noise. Not only does it dampen ambient sound in the room it's installed in, but it also inhibits sound from traveling into the room below. Although it is promoted as an upgrade underlayment taking the place of poly foam, it doesn't carry a heavy upgrade price when compared to cork or rubber. On the other hand, in recent head-to-head Sound Transmission Loss tests, Home Depot's Best Underlayment outperformed both cork and rubber in the majority of test band frequencies. Certified field sound tests were performed on an installation over a standard 6 in. concrete sub floor, and received an FIIC score of 71.
| ASTM D 3273 test results | N/A | Assembled Depth (in.) | 400 in |
| Assembled Height (in.) | .125 in | Assembled Width (in.) | 36 in |
| Commercial / Residential | Commercial / Residential | Flooring Product Type | Underlayment |
| Form | Fiber cement | Manufacturer Warranty | Limited lifetime warranty |
| Moisture Resistant | Yes | Pack Coverage | 100 ft² |
| Package coverage (sq. ft.) | 100 | Product Length (in.) | 400 in |
| Product Weight (lb.) | 13.5 | Product Width (in.) | 36 in |
| Returnable | 90-Day |
Warranty
For warranty information on this product, please call our Internet Customer Service Center at 1-800-435-4654.
Please allow an additional 3-5 business days for Standard Ground Delivery in the U.S.
If product is eligible for shipping to AK, HI and US Territories additional transit time and remote surcharges may apply.
This item is also available for pick up in your local store (FREE) within 4-7 business days, plus order processing time.
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