Roof Access Hatch Security Door, Galvanized Roof Hatch, Building Roof Access Hatch, Roof Vent Escape Hatch Roof Security Door Skylight Maintenance Hatch Cover(50 * 50cm/19.7 * 19.7in)

// This galvanized steel access port provides convenient roof access for a variety of environments, including home improvement, schools, manufacturing plants, warehouses, industry, commercial real estate, and more.—— Product parameters:Product name: Roof Access Hatch/Roof Hatch Cover/Roof Security DoorMaterial: Aluminum alloy frame + galvanized cover plateShape: SquareOpening and closing angle: 90°- Cover frame outer diameter = bottom frame inner diameter + 11cm/4.3in- Measurement tips: bottom frame inner diameter size ≥ wellhead opening size- Roof access door can only be opened and closed from the inside, not from the outside.—— Package Contents:1 x Roof Hatch Cover—— Inner diameter of the bottom frame, outer diameter of the lid. Inner diameter 500*500mm [lid size 610*610mm] galvanized lidInner diameter 550*550mm [lid size 660*660mm] galvanized lidInner diameter 600*600mm [lid size 710*710mm] galvanized lidInner diameter 650*650mm [lid size 760*760mm] galvanized lidInner diameter 700*700mm [lid size 810*810mm] galvanized lidInner diameter 750*750mm [lid size 860*860mm] galvanized lidInner diameter 800*800mm [lid size 910*910mm] galvanized lid[lid size Inner diameter 850*850mm 960*960mm] galvanized CoverInner diameter 900*900mm [lid size 1010*1010mm] galvanized CoverInner diameter 950*950mm [lid size 1060*1060mm] galvanized Cover

• // High-quality Material: This skylight is made of high-quality aluminum alloy frame and galvanized sheet, with strong load-bearing capacity, light weight, and is not afraid of wind and sun. Not easy to deform and has a long service life
• // High Safety: The door can only be opened from the inside and not from the outside. This feature provides security, preventing unauthorized access to the building's interior from the roof
• // Sealing Rubber Gasket: It contributes to a quiet opening and closing process by minimizing friction-induced noise. It can also avoid rain, debris, etc. from entering the building, reducing the cleaning pressure
• // Widely Usage: The roof access hatch can be used not only as a loft skylight cover, but also as an escape hatch cover, basement exit cover, emergency access cover, manhole cover, cellar cover and manhole cover
• // Easy To Install: Our window well cover is easy to install, fast and safe. Drill mounting holes, insert expansion screws. If you want to make it more waterproof, you can fill the gap with glue