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Kingspan Option
Trad. Slate v's Nu-lok


























      Nu-lok UK Home

 Nu-Lok Solar Roofing
    Nu-lok system
  About Solar
 Solar FAQ

Technical Information
       The System
 Shingles

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             Contact Us
Roofing Contractors



  
Technical Data on the Shingles

Slate        
In Europe slate roofs have been used   for centuries. The Saxon Chapel at Stratford-on-Avon, Wiltshire, England has had 1100 years of climatic changes, and is still in good condition, although covered with moss.

Slate, being a natural product, will vary in thickness, colour and strength. 

Slate has very low porosity (approx. 0.4%). Clay tile has a porosity of 2-10% and concrete 3-20%. Low porosity is a feature that equates with a long lifespan. In very cold climates the freeze / thaw cycle will damage the products even more rapidly.

Ceramic    
To overcome the limitations of natural slate Nu-lok produces a high temperature vitrified ceramic slate in Italy. The long life characteristic of slate are retained, but being man-made, we have the advantage of controlling the size, thickness, strength and quality.
Our Italian shingles have very low porosity - water adsorption of approx. 0.5%.
All this means an exceptional long life and strong product (you can walk on it !) and a product that is impervious to moss and algae growth.
Not surprisingly we offer a 50 year warranty.

We can supply both types of Shingle.

A section of a Nu-lok vitrified ceramic slate roof is shown here :-


Nu-lok vitrified Italian Ceramic Slate

 Description

  

 Physical Properties
Each Nu-lok Shingle is fired at 1200 degrees Celsius to ensure that it is perfectly vitrified. Produced under the exacting standards of ISO 9001 & ISO 14001. Each Ceramic Shingle is produced to world class measures and is engineered to withstand extreme environmental conditions.   Water Adsorption: <0.5%
Shingle Size: 400 x 400 mm
No. per squ. metre: 8.33
Thickness: 10 mm
 

 Installation

    General Details
For Full details on the installation of the Nu-lok Roofing System, please contact your local Nu-lok Roofing Systems Representative or consult the Nu-lok Technical Specification Brochure.   Roof Weight: 28Kgs /squ metre
Min. Roof Pitch: 22.5 degrees
Rafter Spacing: up to 900 mm

 

Independent Testing on the Nu-lok Shingles & Fixing System
 
    UNI   British Standards   Additional
Firing Temperature:           > 1200ºC
Water Absorption: UNI EN 99 BS EN 1304 1998
Wind & Wind driven Rain USA-Florida Code TAS 100-95 110 mph
Bending Strength:   UNI EN 100   BS EN 538 1994   > 45 N/mm
Surface Hardness:   UNI EN 101       Conforms
Resistance to chemical products:   UNI EN 122       Conforms
Frost Resistance:   UNI EN 202   BS EN 539/2 1998   Resists
Resistance to Thermal Shock:   UNI EN 202       Resists
Crazing Resistance:   UNI EN 105       Resists
Resistance to abrasion:   UNI EN 154       As indicated
Impermeability Test:       BS EN 539 1994    
Product Definition/Specifications:       BS EN 1304 1998    
External Fire Exposure:       BS 476: Part 3: 1958  
 
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

 Nu-lok Patented Fixing System
AS 2050 1989 Weather Effectiveness of Roofing System Structural Tests
a) Upwards to ultimate
b) Upwards to serviceability
c) Downwards to ultimate
d) Downwards to serviceability
Results: System Meets All Tests

 External Fire Exposure
BS 476: Part 3: 1958
 Test performed by BRE, Gatston, Watford, date 04.10.02

 Wind & Wind Driven Rain Resistance
USA - Florida Building Code test protocol TAS 100-95
Document attached - here (pdf file 114KB)

 Nu-lok gains British Board of Agrément approval
The certification of the Nu-lok system is available in detail in the following document :-
Download here

 The Irish Agrément Board is designated by Government to issue European Technical Approvals.
The IAB, Irish Agrément Board is part of the NSAI, National Standards Authority of Ireland.
The certification of the Nu-lok system is available in detail in the following document :-
IAB-Nu-lok Roofing System (pdf file 572KB)
 
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