The nu-lok roofing system starts with a light, structurally superior grid and water channelling system. The battens are spaced at regular intervals. Locked in place between the battens are nu-lok link channels each possessing a clip for securing the leading edge of each natural or nu-lok ceramic slate.

Technical and installation superiority - fundamental qualities

The link channel allows water that has passed through the gaps between the slates to be routed by the link channel onto the surface of the slate below.

The design efficiency of the nu-lok system represents a significant saving in actual roofing material required, installation times and labour costs.

Strength - nu-lok approaches the strength issue in two parts. First there's the unique interlocking galvalume battening and fixing system, which outperforms traditional perishable and heavier wooden battens. Then lock into this, over extra strong underlayment, with either nu-lok ceramic slate or natural slate tiles. The roof is not only structurally stronger but also lighter.

Natural Slate Installation	Nu-lok Ceramic Installation

Weight - With weight savings of up to 50% when compared to a traditional roof, nu-lok creates construction savings all the way down to the foundations. And you will not run into difficulties replacing an existing roof with a lighter, nu-lok roof.

Maintenance - nu-lok's unique "clip in" fixing system allows for the easy removal and replacement of individual tiles, should you require retrofitting of skylights, air conditioning units or aerials. nu-lok ceramic slate also has no color fade, is resistant to weather attacks, and is immune to acid, moss and fungi.

Independent Testing on Nu-Lok Ceramic Slates and Nu-Lok Patented Fixing System

Nu-lok Ceramic Slates

Tests performed by CERAM 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 Specifications
Results: Performed Extremely Well

Tests performed by Dept Geological Resources & Territory, Turin Polytechnic (Italy)

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
Results: Meets All Tests

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