Drift Head-of-Wall (DHOW)

Head-of-wall drift and deflection for exterior curtain wall and interior, nonload-bearing walls

ClarkDietrich Drift Head-of-wall clips are used in deflection conditions for in-fill curtain wall assemblies and/or interior nonload-bearing partitions to provide for both vertical (deflection) and lateral (drift) movement. These clips are used in place of, or in combination with, deflection track.

The Drift Head-of-wall clips can be attached to the underside of structural members, concrete decks or floor assemblies. Structural attachments are positioned in the center of the slot to allow building drift. The "C" shaped end of the clip is slid inside of the structural stud and not fastened allowing for vertical deflection. Studs must be cut less than full height to enable vertical movement up to 2" (1" up and down).

  • Patent Pending
     

Material Specifications:

Gauge: 14 gauge (68mil)
Design Thickness: 0.0713 inches
Yield Strength: 50ksi
Coating: G90
ASTM: A653/A653M


 

Product Data & Ordering Information:

(DHOW-LG) Clips for attaching 20ga (33mil), 18ga (43mil), or 16ga (54mil) structural studs.

Product code Gauge Mils Design thickness Size Packaging pcs/bucket
DHOW3-LG 14 68 0.0713 For 3-5/8" studs 25
DHOW6-LG 14 68 0.0713 For 6" studs 25
DHOW8-LG 14 68 0.0713 For 8" studs 25

 


(DHOW-HG) Clips for attaching 14ga (68mil) or 12ga (97mil) structural studs.

Product code Gauge Mils Design thickness Size Packaging pcs/bucket
DHOW3-HG 14 68 0.0713 For 3-5/8" studs 25
DHOW6-HG 14 68 0.0713 For 6" studs 25
DHOW8-HG 14 68 0.0713 For 8" studs 25


Installation:

The Drift HOW clips come in two designs.  The DHOW-LG (light gauge) is designed to be installed in structural stud gauges 20ga (33mil), 18ga (43mil) or 16ga (54mil).  The DHOW-HG (heavy gauge) is designed to be installed in structural stud gauges 14ga (68mil), 12ga (97mil).  Attachment to the primary structure can be made with 1/4-14 screws, or concrete anchors and shall be driven through the slotted holes and positioned in the center of the slot to allow building drift. To ensure slip, back-out the fasteners about 1/2 turn.  The "C" shaped end of the clip is slid inside of the structural stud and is not fastened, which allows for vertical deflection. Drywall screws (in the stud) shall be placed no closer than 4" from the slotted leg of the clip.