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Armstrong World Industries, Inc. is a Pennsylvania corporation incorporated in 1891. [2] It is an international designer and manufacturer of wall and ceiling building materials. Based in Lancaster, Pennsylvania, AWI has a global manufacturing network of 26 facilities, including nine plants dedicated to its WAVE joint venture. [3]
Popcorn ceiling texture. A popcorn ceiling, also known as a stipple ceiling or acoustic ceiling, is a ceiling with one of a variety of spray-on or paint-on treatments. [1] The bumpy surface is created by tiny particles of vermiculite or polystyrene, which gives the ceiling sound-deadening properties. Mixtures are available in fine, medium, and ...
Armstrong Cork Company eventually moved its headquarters to Lancaster, Pennsylvania. The company's product lines evolved from cork products and Linoleum, to vinyl floors, acoustical ceiling products, and glassware in each of which industries it was at one time a leading producer and brand.
Acoustic ceiling may refer to: Dropped ceiling; Popcorn ceiling This page was last edited on 27 December 2019, at 14:27 (UTC). Text is available under the ...
Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations.
Architectural acoustics (also known as building acoustics) is the science and engineering of achieving a good sound within a building and is a branch of acoustical engineering. [1] The first application of modern scientific methods to architectural acoustics was carried out by the American physicist Wallace Sabine in the Fogg Museum lecture room.
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