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Curtain Wall Attachment to Rated Floor

Description:

  • Typical curtain wall transition using CW-D-1014 floor transition assembly to maintain rating.
  • Attachment method for the curtain wall to the CLT in this detail is mounted to the top of the CLT.

Purpose: Intermediate floor transition detail for curtain wall and rated floor assembly.

 

Design Notes

  • Surface-mounted anchor; needs to be installed prior to acoustic mat and topping.
  • Steel bent plate with lag screws.
  • Minimum 5-ply CLT required for floor rating up to 1 1/2″ hr.
  • Pre-finished steel back pan only recommended when no ceiling is used to cover the Thermafiber behind the spandrel at the floor transition.
  • Custom work by curtain wall suppliers may be needed to interface with the timber.

Acoustics:

  • Thermafiber Safing and smoke seal used at space between floor and wall both for acoustic and smoke separation.

Fire:

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

Curtain Wall Attachment to Rated Floor

Typical curtain wall transition using CW-D-1014 floor transition assembly to maintain rating. Attachment method for the curtain wall to the CLT in this detail is mounted to the top of the CLT.
19-10-CLT-INTERMEDIATE-FLOOR-AT-CURTAINWALL-&-RATED-FLOOR