Get easy access to your attic with this Fakro LMF fire-rated ladder. The LMF attic ladder is fire-rated at 60-minutes in accordance with ASTM E119 Standard Test Methods for Fire Tests of Building Construction Materials. It also functions as a blaze block in case of fire. The hatch is manufactured with fireproof materials and equipped with a gasket that expands under extreme heat. R-8.9, sealed with a rubber gasket and built with insulation between boards to help save energy Certified for 60-minutes fire resistance by ASTM E119 Certified for 60-minutes fire resistance by NFPA 288 350 lbs. maximum load capacity Durable 3-section steel construction with an appealing finish Non-slip treads and rubber ends on the rails promote safe usage Adjusts for ceiling heights from 8 ft. 1 in. to 10 ft. 1 in. Door is balanced to open and close with no sudden movements