18,000 RDS spacer screws from Reisser have been used in the Rümikerstrasse building project in Winterthur, Switzerland, with a total façade area of 6,000m².
Designed to be fastened to wood or aluminium when constructing rear ventilated façades, the spacer screw has two different threads on the head and tip unlike conventional screws. The profile to be fastened is held at a distance with the head thread. The anchor thread is then used for fastening in the substrate by means of plastic frame anchors for tensile and compressive load transfer. The RDS is currently available in the lengths 190mm – 370mm and has received RDS approval, which can be used in all commercially available insulation materials and profiles – both in new buildings and in renovations.
In view of the simplified mounting of substructures for the rear ventilated façades with approved frame anchors, Reisser-Schraubentechnik insists considerable time and material savings are apparent when using the RDS compared with conventional installation. Fewer work steps results in shorter assembly time, which generates greater economic efficiency. This involves easy installation without cumbersome cutting-out of the insulation. Insulation waste is thus sustainably reduced, and insulation faults and air pockets are prevented.
The A4 stainless steel version can also be used in fire protection connection systems and is a safe product for rear ventilated façades, meeting fire regulations.
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