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17-2-TYPICAL-FLOOR-ASSEMBLY-AT-DECK-PAVERS

Typical 5-Ply CLT Floor with Raised Plenum Floor/Concealed Ceiling

Description:

  • Concrete access floor panel with adjustable pedestals
  • Minimum 3/4″-thick floor topping with minimum compressive strength of 1800 psi; reinforce topping slab as required
  • Sound insulation board
  • CLT panels
  • 1/2″ resilient channel, 5/8″ gypsum board, suspended ceiling (24″-deep plenum) with 3 1/2″ mineral wool batt insulation, 5/8″ gypsum board

Purpose: CLT floor assembly with concrete/gypsum topping (ceiling side concealed)

Design Notes

Topping options:

  • Normal or lightweight concrete
  • Gypsum concrete floor

Sound insulation options:

  • Thickness varies; thicker mat will provide better acoustic separation

Acoustics:

  • 5-ply CLT (6.875″ total thickness) with 3/4″ Gyp-Crete, with Maxxon Acousti-Mat 1/8″ with suspended ceiling (24″-deep plenum) with 3-1/2″ mineral wood batt insulation, 5/8″ gypsum board = STC 54 & IIC 56

Fire:

  • Non-rated 3-ply CLT 1 1/2-hr rating possible: 5-ply CLT Design No. L901
Const.
Constructability Easy
Fire
Fire Rated Up To 1-1/2 Hours

Related Mass Timber

Typical 5-Ply CLT Floor with Raised Plenum Floor/Concealed Ceiling

Concrete access floor panel with adjustable pedestals Minimum 3/4"-thick floor topping with minimum compressive strength of 1800 psi; reinforce topping slab as required Sound insulation board CLT panels 1/2" resilient channel, 5/8" gypsum board, suspended ceiling (24"-deep plenum) with 3 1/2" mineral wool batt insulation, 5/8" gypsum board
17-2-TYPICAL-FLOOR-ASSEMBLY-AT-DECK-PAVERS