THERMAFIBER® Sound Attenuation Fire Blankets (SAFB) For unsurpassed sound and fire performance for walls and ceilings

3 System Performance Superior Sound Attenuation Superior Fire Resistance 4 Fire Performance Testing 5 Sound and Fire-Rated SAFB Assemblies 10 Technical Data 11 Good Design Practices 11 Architectural Specifications Contents

THERMAFIBER® Sound Attenuation Fire Blankets (SAFB) are the best way to stop sound in wall and ceiling assemblies. The noncombustible mineral-fiber composition of this product not only gives it high sound attenuation characteristics, but also enables it to contribute to high fire ratings in many assemblies. The tests prove that THERMAFIBER SAFBs are the best performance value for multi-family residential projects, hotels and motels, offices and retail businesses. A few of the innumerable tests of assemblies utilizing THERMAFIBER SAFBs for sound and fire performance are shown on pages 5-9. For...

Fire Performance Effective performance for both high sound and fire ratings is the unique characteristic of THERMAFIBER Sound Attenuation Fire Testing Blankets. Glass fiber insulation simply doesn’t compare. Glass fiber’s lower density means lower sound performance, according to sound tests conducted by USG. Evaluations of various densities and thicknesses showed that the best acoustical performance in mid- and high-frequency sound (typical in offices and between hotel rooms) was with insulations of a nominal density of 2.5 lb./cu. ft. Densities above 2.5 lb./cu. ft. performed better at higher...

Sound & Fire Tests The following are typical assemblies containing THERMAFIBER Sound Attenuation Fire Blankets (SAFBs). Each has been tested for acoustical performance and each has a fire rating or estimated fire rating. The Sound Transmission Class (STC), Impact Insulation Class (IIC), Ceiling Attenuation Class (CAC) and Field Sound Transmission Class (FSTC) are listed first and assemblies of each type are listed in order with highest sound performance first. UL design or other fire test or sound test information are identified at the end of the assembly description. A wide variety of systems...

54 STC* 1-hr. partition, single-layer, resilient channel— 39 THERMAFIBER SAFB in stud cavity—5/89 gypsum wallboard Type C core—3-5/89 20 ga steel studs 249 o.c.—RC-1 chan or equivalent one side spaced 249o.c. screw-att to studs—gypsum panels screwatt to studs & RC-1 channels—joints stag and fin— perimeter caulked—UL Des U419 or U451 rating also applies with IMPERIAL Brand gypsum base, FIRECODE C core, and veneer finish surface— RAL-TL-83-216 A-14 50 STC 2-hr. partition, single-layer—39 THERMAFIBER SAFB in stud cavity—3/49 SHEETROCK Brand gypsum Panels, ULTRACODE core, ea side—min. 3-1/29 25 ga...

57 STC** 2-hr. partition, double-layer chase wall—3-1/2" THERMAFIBER SAFB on one side in stud cavity— 2 layers 5/8" gypsum wallboard Type X ,ea side— 1-5/8" 25 ga steel studs 24" o.c. in 2 rows spaced 6-1/4" apart—5/8" gypsum panel gussets or steel run braces spanning chase screw-att to studs— panels appl screw att—joints stag & fin—UL Des U420—TL-76-156 52 STC** 1-hr. partition, single-layer chase wall—3-1/2" THERMAFIBER SAFB on one side in stud cavity—5/8" gypsum wallboard Type X, ea side—1-5/8" 25 ga steel studs 24" o.c. in 2 rows spaced 6-1/4" apart— 5/8" gypsum panel gussets or steel run...

59 STC* 2-hr. partition—double-layer, resilient channel— 29 THERMAFIBER SAFB in stud cavity—2 layers 5/89 gypsum wallboard Type C core, each side—2 x 4 169 o.c.—RC-1 channel or equivalent one side, spaced 249 o.c.—resilient side screw att—opp side nail att—both base layers appl vert and face layers appl horiz—resilient layers perimeter caulked—joints fin—UL Des U334—TL-67-239 50 STC* and **** 1-hr. partition—single-layer—3" THERMAFIBER SAFB in stud cavity—1/2" Cemetitious Backer Board (cement board) and 1/4" ceramic tile one side—5/8" gypsum wallboard Type C, one side—3-5/8" 20 ga steel studs...

Cement Board/Wood Stud Partitions (Load Bearing) 40 STC* and **** 1-hr. partition—single-layer—3-1/2" THERMAFIBER SAFB in stud cavity—1/2" Cemetitious Backer Board (cement board) and 1/4" ceramic tile one side—2 x 4 studs 16" o.c.—board att with 1-5/8" TYPE S-12 corrosion resistant wafer-head steel screws or 1-1/2" hot-dipped galv nails 8" o.c.—5/8" gypsum wallboard Type C core other side—joints taped—UL Des U329—USG-840314 A-114 Mineral Fiber Overlay on Acoustical Ceiling System Wood Joist Ceiling Systems (Unrestrained Assemblies) 47 STC/40 IIC* 1-hr. ceiling—single-layer— 1" FIRESPAN 90 laid...

Technical Data THERMAFIBER Sound Attenuation Fire Blankets are available in two densities and nine thicknesses to meet a variety of sound and fire performance needs. Also, Creased THERMAFIBER SAFB, a specially engineered product, is available for certain high-performance sound-rated assemblies. The table below shows the R-values and densities available for various thicknesses of THERMAFIBER SAFBs, as well as “k” values, sizes, flame spread and smoke developed ratings and density tolerances. THERMAFIBER SAFB insulation in a typical partition assembly. Creased This specially engineered SAFB insulation...

Specification Compliance THERMAFIBER Sound Attenuation Fire Blankets meet the following: 1. Class A interior finish rating per NFPA 101, life safety code. 2. ASTM C665, Type 1, per Federal Specification HH-I-521F. 3. ASTM C553 (SAFB Blankets absorb less than 1% moisture by weight and volume). 4. ASTM C612, Type 1, per Federal Specification HH-I-558B. 5. ASTM E136 (rated noncombustible as defined by NFPA Standard 220 when tested according to ASTM E136). 6. Accepted by New York City Department of Buildings (MEA-207-82M). Approved by the New York City Board of Standards & Appeals for use in New...