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In a “soft body” test, what is the weight used to simulate a person falling on to the glass?
What is the uniformly distributed load in kN/m2 for a walk-on rooflight in a domestic building, as specified in the National Annex BS EN 1991-1-1?
Fritted glass records a pendulum test value (slip resistance) of what?
A double-glazed unit might be expected to achieve a sound reduction of around how many decibels?
In a “hard body” test, what is dropped onto the glass rooflight?