Certified for fire resistance at 30, 60, and 90 minutes for Solid Timber Joist and, 30 and 60 minutes for I-Joist ceiling constructions, compliant with BS 476 Part 21, the Evofire ensures peace of mind wherever fire protection is needed. Air Tightness compliant with Part C and Part L and Resistance to Sound compliant with Part E. See Installation guide for full details.