Installation Guide

20
December 2020
Figure 4 — Installation of Hilti KB-TZ2 carbon steel in the soffit of concrete over metal deck floor and roof
assemblies – W deck
Figure 5 — Installation of Hilti KB-TZ2 carbon steel in the soffit of concrete over metal deck floor and roof
assemblies – B deck
h
min,deck
Max. 3"
Lower flute installation
Min. 12 " typ.
Upper flute
installation
Min.
5/8"
1
Min.
3-7/8"
Min.
3-7/8"
Min. 1"
Min. 20-gauge steel deck
Lower flute installation
Upper flute
installation
Min. 6 " typ.
Min.
5/8"
1
Min. 20-gauge
steel deck
h
min,deck
Max. 1-1/2"
Min.
3-1/2"
Min. 3/4"
Min. 1-3/4"
1 5/8” clearance between the bottom of the drilled hole and the concrete surface is only applicable for upper flute installations. Refer to Tables 30 and 31 for minimum concrete thicknesses for
installations into the lower flute.