Whisperclip Walls vs Standard Gypsum

Wall Assembly: Standard Drywall Construction

  • 24" On Center, 5/8" Drywall on bothsides
  • STC 47 - 24"OC Wall Framing
  • STC 52 - 24"OC Wall Framing
  • STC 52 - 24"OC Wall Framing
STC Source Side Studs Insulation Receive Side Test #
40 One 5/8″ layer of drywall 24″ OC R13 One 5/8″ layer of drywall 05-1003
42 Two 5/8″ layers of drywall 24″ OC R13 One 5/8″ layer of drywall 05-1058
44 Two 5/8″ layers of drywall 24″ OC R13 Two 5/8″ layers of drywall 05-1059

Wall Assembly: Addition of Whisper Clips and Drywall Furring Channels

  • Whisper Clip Soundproofing Wall - STC 55
  • Whisper Clip Soundproofing Wall - STC 61
  • Whisper Clip Soundproofing Wall - STC 63
STC Source Side Studs Insulation Receive Side Test #
55 5/8″ Gypsum Board attached with + 7/8″ Drywall Furring Channel @ 24″ OC + WhisperClip 16″ OC R19 5/8″ Gypsum Board 08-0710
61 Two layers of 5/8″ Gypsum Board + 7/8″ Drywall Furring Channel @ 24″ OC + WhisperClip 16″ OC R19 5/8″ Gypsum Board 08-0712
63 Two layers of 5/8″ Gypsum Board + 7/8″ Drywall Furring Channel @ 24″ OC + WhisperClip 16″ OC R19 Two layers of
5/8″ Gypsum Board
08-0713
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