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Permanent screen protection requirements
2.7NI-wide·Technical Booklet V Glazing
When glazing in a critical location is installed behind permanent screen protection the screen should – (a) prevent a sphere of 75 mm diameter from coming into contact with the glazing; (b) be capable
glazingprotection-from-fallingcritical-locationGlazing compliance when screen protection is provided
2.8NI-wide·Technical Booklet V Glazing
Glazing in a critical location which is afforded permanent screen protection does not, itself, need to comply with the provisions of paragraphs 2.1(a) and 2.1(b).
glazingprotection-from-fallingcritical-location