The Topglass Fire Retardant range is supplied as fire and smoke retardant natural lighting systems for use in commercial and industrial buildings. These products have been extensively tested by BRANZ using the cone calorimeter ISO 5660 and AS/NZS 3837 test method, and the full scale ISO 9705 room test.
Topglass FR 50 Plus achieves an NZBC Group 3 rating and Topglass 60 FR achieves an NZBC Group 2 rating.