Features and benefits • Fully complies with NHBC standards for having a minimum access opening of 520mm • Purpose made product with proven performance • Superior to site fabricated panels • Provides up to 60 minutes fire protection and Class O surface spread of flame classification • Excellent aesthetic appearance and factory finished • Maintenance free, no need to paint • Allows the use of a telescopic ladder if required • Incorporates secure twist operated catch assembly • U value 0.82 W/m2k and 0.35W/m2k option Insulated 1 hour fire rated metal loft access hatch and frame to provide simple, easy access through ceilings into the loft space for applications where fire protection is required.