283757893275

Cladding and Curtain Wall Construction 433
Restraint cramp
Blockwork infill structure
or other suitable frame
Disc to retain insulation
in position
Support angle with
restraining dowel
Structural concrete floor
All anchors should be
tightened using a
calibrated torque spanner
Restraint cramp with
dowel cast-in slot
Cranked restraint and
support – used where
access is a problem and
above cavity tray
Figure 7.15 Fixing detail for stone cladding.
Face fixings
As an alternative to support and restraint fixing of stone facing slabs, face fixing may be
used for thin slabs. Each stone facing slab is drilled for and fixed to a solid background
with at least four stainless steel or non-ferrous bolts. The stone slabs may be bedded in
position on dabs of lime putty or weak mortar, which is spread on the back of the slabs
and the slabs are secured with expanding bolts and washers, as illustrated in Figure 7.16.