Web4A. Gypsum Board* — (As an alternate to Item 4) — 5/8 in. thick, 4 ft. wide, paper surfaced applied vertically and secured as described in Item 4. GEORGIA-PACIFIC GYPSUM L L C — Type X ComfortGuard Sound Deadening Gypsum Board (finish rating 27 min). 4B. Gypsum Board* — (As an alternate to Items 4, 4A) — Nominal 5/8 in. thick, 4 ft wide panels, applied … WebSo the building industry developed a Sound Transmission Coefficient (STC) rating system. If the sound level in one room is 70 decibels and 20 decibels gets over to the adjoining room, that would be a STC of 50. So the amount of decibel level decrease from one space to the next is the STC rating.
Sound Transmission Class - an overview ScienceDirect Topics
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All walls are not alike - a look at STC - Soundproofist
Webplaster finish application: A large pump (2L4 roto-stator, or a Grover 8:1 piston pump) or peristaltic pump (1 in. i. d.) is required to rapidly apply the acoustical plaster finish. Match an air compressor to the length of the material hose, ensuring that it has sufficient capacity. For mixing, use a 7 cu. ft. or larger paddle-type plaster WebTesting for Sound Transmission Class (STC) of a Residential Carpet Installed with Cushion over a Joist and Plywood Subfloor. Tested Materials: Carpet and cushion—25 ounces per square yard 100% nylon cut pile residential carpet installed over bonded polyurethane bonded cushion ½ inch thickness with 6.0 lb/ft 3 density. Test Floor: Open Joist 2000 … WebDescribes complete line of construction products, including Sheetrock brand gypsum panels and Imperial brand gypsum base for drywall and veneer plaster construction, sheathing and ceilings. Also, beads, trims, framing, insulation, fasteners, adhesives, joint compounds, coatings, tapes, plaster finishes and textures. Chapter 2 - Framing brian ulmer jersey shore