Stc 50 Suspended Ceiling

Resilient channels attached 16 406 mm o c.

Stc 50 suspended ceiling.

The field test evaluates the dwelling s actual construction and includes all sound paths. One hour fire rated partition parallel to one side of min. Drop ceiling tile sound barrier is made with foil faced mass loaded vinyl bonded to a scrim faced fiberglas. 50 stc with single layer designs.

Ubc requirements for floor ceiling assemblies. One hour fire rated partition 3. In base layer and 1 5 8 2. 24 x 24 tiles.

In 1961 stc was introduced as the method for comparing various wall ceiling floor door and window assemblies. Optimizing ceiling systems and lightweight plenum barriers to achieve ceiling attenuation class cac ratings of 40 45 and 50. Stc rating of 29 and fire rated astm e 84 class a. High cac ceiling panels can provide this type of sound control increasing speech.

Available in two sizes. Maximum with 1 5 8 41 mm type s drywall screws 8 203 mm o c. Two hour fire rated partition. 24 x 48 tiles.

Fire rated floor ceiling assemblies using metal framing stc 50 iic 50 fire rating as shown 1. 5 8 15 9 mm toughrock fireguard c gypsum board or 5 8 15 9 mm densarmor plus fireguard c gypsum panels applied perpendicular to i shaped wood joists or wood and steel trusses spaced 19 2 488 mm o c. Stc 50 lab test 3 tl 93 333 alternative stc 50 wall options. The safety of those armstrong acoustical ceiling products that do contain mineral wool has been confirmed through occupational studies of mineral wool workers which have been carried out for more than 50 years.

Through base layer perpendicular to. Stc ratings of 50 if tested in a laboratory or 45 if tested in the field. Ceiling attenuation a measurement of the ability of a ceiling panel to block the travel of sound from an enclosed room up into the plenum class cac and down to adjacent spaces. Some armstrong ceilings contain mineral wool but they do not represent a health risk see below.

Installs by simply placing on top of existing ceiling tiles. Test curve and the stc rating is heavily influenced by a measurement in one fre quency band. 25 gauge metal studs 24 with 1 type s drywall screws 36 o c. The standard requires a minimum laboratory stc rating of 50 for party walls and floor ceilings.