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18-4-ROOF-TIE-OFF-PENETRATIONS-AT-TYPICAL-ROOF-ASSEMBLY

Roof Tie-Off at Typical Roof Assembly

Description:

  • Penetration in CLT is provided either pre-cored or cored in place depending on size of penetration required.
  • Typical roof tie-off mounted to CLT roof deck using base plate with lag screws or bolts.

Purpose: Typical roof tie-off detail for facade maintenance at CLT roof deck.

 

Design Notes

  • Boot flashing and roof membrane transitions.
  • Blockouts in concrete paver layout required.

Acoustics:

  • 3-ply CLT = IIC 22 & STC 38 5-ply CLT = IIC 25 & STC 41 (Rigid board and roofing membrane not included).

Fire:

  • Non-rated 3-ply CLT 1 1/2-hr rating possible: 5-ply CLT Design No. L901 Would require adding a topping under the rigid insulation.
Const.
Constructability Easy
Fire
Fire Rated Up To 1-1/2 Hours

Related Mass Timber

Roof Tie-Off at Typical Roof Assembly

Penetration in CLT is provided either pre-cored or cored in place depending on size of penetration required. Typical roof tie-off mounted to CLT roof deck using base plate with lag screws or bolts.
18-4-ROOF-TIE-OFF-PENETRATIONS-AT-TYPICAL-ROOF-ASSEMBLY