Why slot-and-blade is better than the widely used hole and dowel?
Rainscreen Cladding is the best choice for the opaque part of the building envelope. Among the different side fixing methods available for cladding panels, slot-blade is gaining popularity by winning over the widely used dowel-hole lately. We bring you the reason for this changing trend underlining the major advantages of slot-blade over the other.
The main difference between the slot-blade and dowel-hole fixing are:
High Wind Resistance: F1>F2: Wind load performance is better with the slot-blade fixing method as the load is uniformly distributed along the width of the blade, unlike the dowel where the load is acting on a single point.
Low Panel Thickness: a1<a2: The thickness of the slot is 2-3 mm while the dowel-hole’s diameter is usually 8-10 mm; This results in a lesser depth of material left to resist the load actions;
Easy Panel Processing: Slots achieved through a simple linear cutting that takes much less time compared to drilling circular holes on the panel
Low-cost: Cladding panel downsizing, less time in panel machining results in a saving of 12-20 euro/sqm;
High Overall Performance: Slot-blade fixing method offers better static performance due to the possibility of wedge and clasp fixing along with other benefits of profiled cladding system;