Nulok Heather SlateNulok Black SlateNulok Grey Slate
Heather colour
Fine upper surface texture and a distinctive dressed edge
400 x 300 x 6/8mm thick
50 Year Guarantee
Charcoal-Black colour
Hard coarse textured upper surface with a dressed edge offering a rustic natural appearance
400 x 400 x 6/8mm thick 400 x 300 x 6/8mm thick
50 Year Guarantee
Heritage Grey colour
Hard coarse textured upper surface with a dressed edge offering a rustic natural appearance
400 x 400 x 6/8mm thick 400 x 300 x 6/8mm thick
50 Year Guarantee
Nulok Global Pty Ltd - Natural Heather SlateNulok Global Pty Ltd - Natural Black SlateNulok Global Pty Ltd - Natural Grey Slate

Nulok Roofing System Technical Date and Certifications

The Nukok Roofing System offers a straightforward, efficient method of installing both Natural Slate and Nulok Ceramic Tiles. This incredibly robust system incorporates Zincalume Battens spaced at 307mm. Locked in place between the battens are Nulok Link Channels, each possessing a stainless steel clip used for securing the leading edge of each slate. This Link Channel eliminates the need for side double-lapping of slates because water passing through the slate is routed by the Link Channel onto the surface of the slate below.
Tests Performed on Nulok Ceramic Slate Tiles

Tests performed by CREAM Building Technology Laboratory (UK)

BS EN 538 1994 – Flexural Strength Test
BS EN 539 1994 – Physical Characteristic Impermeability Test
BS EN 539/2 1998 – Frost Resistance Test
BS EN 1024 1997 Geometric Test
BS EN 1304 1998 Product Definition and Specification Test

Test performed by Turin Polytechnic (Italy) Dept of Geological Resources and Territory

Water Absorption
Resistance to indirect traction by means of bending
Resistance to indirect traction by means of bending after freezing
Resistance to alterations caused by weather

External Fire Exposure

BS 476: Part 3 1958

Simulated Static and Cyclic Wind Uplift Test

Passed Wind Classification upto and including C2 (cyclonic wind test).

Test performed on Nulok Fixing System

AS 2050 1989 Weather Effectiveness of Roofing System Structural

Upwards to ultimate
Upwards to serviceability
Downwards to ultimate
Downwards to serviceability

Florida Building Code Test Protocol TAS100-95 – test procedure for wind and wind driven rain resistance of discontinuous roof systems.

Based on overlap of 100mm400 x 400mm Slate400 x 300mm Slate400 x 250mm Slate
Slates per m28.3311.113.3
No. of Link Channels per m28.511.513.5
Slate/Tile Clips8.511.513.5
Battern Centres307 ± 7mm307 ± 7mm307 ± 7mm