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Square-Lok® has a large contact area with the roofing
profile and self-aligns with the roofing profile, even
when installed off centre. This spreads the up-force
load from heavy winds evenly across the surface of the
cyclone plate. It eliminates the problems of chafing
and small contact area of conventional bonded washers
systems.
Advantages include:
- Significantly improves the roof-holding capability
- Quicker and easier to install
- Self-aligns to the surface of the roof sheeting
- Tested and passed by the James Cook University
Cyclone Testing Station
- Includes a double washer system, an upper
and lower EPDM Seal preventing water entry between
the screw head, cyclone plate and roofing profile
- Provides a neater, more aesthetic roof appearance
- ColorMatch® painted to match the colour
of the roofing profile
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The James Cook University, Cycle Structural
Testing Station in report TS570, has tested Square-Lok®.
Cyclic fatigue load trials were performed at 10,000
cycles as described in clause 3b of the Northern Territory
BCA appendix. It has successfully completed the required
10,000 load cycles. The roofing resisted the proof load,
with some evidence of cracking observed from the fixing
locations.
The Square-Lok® Square Rib roofing cyclone
assembly is available as:
- 14-10 x 65mm HWH Type 17
- 14-10 x 75mm HWH Type 17
- 14-10 x 50mm HWH Metal Teks®
- 15-15 x 55mm HWH Metal Batten Teks®
- In a choice of a Class 3 or Class 4 corrosion
resistant finish
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