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2. Underlay - Wikipedia

   en.wikipedia.org/wiki/Underlay

   In vinyl flooring or "linoleum", the underlay is the thin layer of plywood that is fastened over the structural subfloor to create a uniform, smooth platform for the sheet vinyl. For laminated wood flooring, the underlay provides a “vapor barrier” to prevent moisture from coming through the floor of the home and then migrating into the ...

3. Absorption (acoustics) - Wikipedia

   en.wikipedia.org/wiki/Absorption_(acoustics)

   Acoustic tile (ceiling) .80 .90 .90 .95 .90 Brick .03 .03 .03 .04 .05 Carpet over concrete .08 .25 .60 ... An acoustic anechoic chamber is a room designed to absorb ...

4. Underlayment - Wikipedia

   en.wikipedia.org/wiki/Underlayment

   Underlayment may refer to: Underlay, a material placed underneath floor carpet, other flooring materials, or mattress bedding; Underlayment, a water-resistant or waterproof layer used beneath many types of commercially available roofing material. Bituminous waterproofing, systems designed to protect residential and commercial buildings

5. Acoustic foam - Wikipedia

   en.wikipedia.org/wiki/Acoustic_foam

   Acoustic foam tiles are suited to placing on sonically reflective surfaces to act as sound absorbers, thus enhancing or changing the sound properties of a room. [ 11 ] This type of sound absorption is different from soundproofing, which is typically used to keep sound from escaping or entering a room rather than changing the properties of sound ...

6. Flooring - Wikipedia

   en.wikipedia.org/wiki/Flooring

   Resilient flooring includes many different manufactured products including linoleum, sheet vinyl, vinyl composition tile (VCT) [dubious – discuss], cork (sheet or tile), and rubber. Vinyl flooring is available in large sheets or pre-cut tiles; the former is resilient. Some come with a pre-applied adhesive for peel-and-stick installation ...

7. Akoustolith - Wikipedia

   en.wikipedia.org/wiki/Akoustolith

   The two had previously collaborated in the development of the Rumford tile, a ceramic acoustical finish used in the construction of the St. Thomas Church in New York City. [6] While initially a success, the cost to manufacture Rumford tile led the company to focus on the development of the cheaper and more durable Akoustolith. [7]