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Question 1 of 5
1. Question
TN66 categorises glazed roofing using what classes?
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Question 2 of 5
2. Question
The most common interlayer used in laminated glass is what?
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Question 3 of 5
3. Question
In a domestic situation, NARM guidance on load capacities for walk-on rooflights suggests a uniformly distributed load (kN/m²) of up to what?
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Question 4 of 5
4. Question
How heavy is the steel ball used in a “hard body test”?
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Question 5 of 5
5. Question
How much stronger than annealed glass is heat-strengthened laminated glass?