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Sound Rating Guides

  • Steel Frame Drywall Partition
  • Steel Joist Ceiling
  • Wood Frame Drywall Partition
  • Wood Joist Ceiling

Sound Rating Guide SF

Steel Frame Drywall Partition
CodeFramingFacingSound Transmission Coefficient
SF 51 5/8" studs at 16" o.c.5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.46
SF 101 5/8" studs at 24" o.c.2 layers 1/2" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.55
SF 15 2 1/2" studs at 24" o.c.1/2" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.47
SF 20 2 1/2" studs at 24" o.c.5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.51
SF 25 2 1/2" studs at 24" o.c.2 layers 1/2" drywall one side, 1 layer 1/2" drywall other side and 1.5" Monoglass Spray-On between studs, one side.52
SF 30 2 1/2" studs at 24" o.c.2 layers 5/8" drywall one side, 1 layer 5/8" drywall other side and 1.5" Monoglass Spray-On between studs, one side.54
SF 35 2 1/2" studs at 24" o.c.2 layers 5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.57
SF 40 3 5/8" studs at 24" o.c.1/2" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.48
SF 45 3 5/8" studs at 24" o.c.5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.50
SF 50 3 5/8" studs at 24" o.c.2 layers 1/2" drywall one side, 1 layer 1/2" drywall other side and 1.5" Monoglass Spray-On between studs, one side.53
SF 55 3 5/8" studs at 24" o.c.2 layers 5/8" drywall one side, 1 layer 5/8" drywall other side and 1.5" Monoglass Spray-On between studs, one side.54
SF 60 3 5/8" studs at 24" o.c.2 layers 1/2" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.55
SF 65 3 5/8" studs at 24" o.c.2 layers 5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.56

View the complete Sound Rating Guide in PDF format here:

  • Monoglass Sound Rating Guide STC charts

Sound Rating Guide SJ

Steel Joist Ceiling
CodeJoist & FloorFacingSound Transmission Coefficient
SJ 512" steel joists 6 lb./ft. at 24" o.c. 2" - 3000 PSI concrete floor5/8" drywall on drywall furing channel at 24" o.c. and 1" Monoglass Spray-On to concrete slab ceiling.49
SJ 1012" steel joists 6 lb./ft. at 24" o.c. 2" - 3100 PSI concrete floor1/2" drywall on drywall furing channel at 24" o.c. and 1" Monoglass Spray-On to concrete slab ceiling.48
SJ 1510" steel joists 4.8 lb./ft. at 24" o.c. 2 1/2" - 4000 PSI concrete floor1/2" drywall on drywall furing channel at 24" o.c. and 1" Monoglass Spray-On to concrete slab ceiling.50
SJ 2012" steel joists 6 lb./ft. at 24" o.c. 2" - 3500 psi concrete floor2 layers 5/8" drywall on nailing channel at 24" o.c. and 1" Monoglass Spray-On to concrete slab ceiling.50
SJ 25Hambro steel joists 10" deep 5.5 lb./ft. min. 2.5" or 3.5" - 3500 PSI concrete floor, air duct, firestop flap, electrical outlets.51/2" drywall on drywall furing channel at 24" o.c. and 1" Monoglass Spray-On to concrete slab ceiling.55

View the complete Sound Rating Guide in PDF format here:

  • Monoglass Sound Rating Guide STC charts
Click to enlarge
Steve Nash Fitness Club

Sound Rating Guide WF

Wood Frame Drywall Partition
CodeFramingFacingSound Transmission Coefficient
WF 52 rows 2 x 3 studs 1" apart at 16" o.c.5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.49
WF 102 x 4 studs at 16" o.c.2 layers 1/2" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.45
WF 152 x 4 studs at 16" o.c.2 layers 5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.48
WF 20Staggered 2 x 4 studs at 8" o.c. on 2" x 6" plate5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.51
WF 25Staggered 2 x 4 studs at 8" o.c. on 2" x 6" plate2 layers 1/2" drywall both sides and 1.5" Monoglass Spray-On between studs, one side.54
WF 30Staggered 2 x 4 studs at 8" o.c. on 2" x 6" plate2 layers 5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side56
WF 352 rows 2 x 4 studs 1" apart at 16" o.c.5/8" drywall both sides and 1.5" Monoglass Spray-On between studs, one side52

View the complete sound rating guide in PDF format here:

  • Monoglass Sound Rating Guide STC charts

Sound Rating Guide WJ

Wood Joist Ceiling
CodeCeiling JoistFacingSound Transmission Coefficient
WJ 52 X 8 joists at 16" o.c.1/2" drywall and 1.5" Monoglass Spray-On between joists and drywall resilient channel.45
WJ 102 X 8 joists at 16" o.c.5/8" drywall and 1.5" Monoglass Spray-On between joists and drywall resilient channel.46
WJ 152 X 8 joists at 16" o.c.2 layers 1/2" drywall and 1.5" Monoglass Spray-On between joists and drywall resilient channel.50
WJ 202 X 10 joists at 16" o.c.1/2" drywall and 1.5" Monoglass Spray-On between joists and drywall resilient channel.47
WJ 252 X 10 joists at 16" o.c.5/8" drywall and 1.5" Monoglass Spray-On between joists and drywall resilient channel.48
WJ 302 X 10 joists at 16" o.c.2 layers 1/2" drywall and 1.5" Monoglass Spray-On between joists and drywall resilient channel.53
WJ 352 X 10 joists at 16" o.c.2 layers 5/8" drywall and 1.5" Monoglass Spray-On between joists and drywall resilient channel.54

View the complete Sound Rating Guide in PDF format here:

  • Monoglass Sound Rating Guide STC charts
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