Commercial Waterproof Skylight Window Roof Hatch, Skylight Ventilation Access Hatch One-Handed Operation for Rooftops, Passageways, Skylights(55x55cm/21.65x21.65in)

Brand：HSOQNMade of thickened aluminum alloy, this access roof window cover has a solid structure and sealed design to easily cope with harsh environments, ensuring long-lasting stability of the passage and protecting your indoor safety all year roundProduct name: Aluminum alloy roof access coverMaterial: aluminum alloyColor: dark grayAluminum alloy thickness: 1.2mm/0.047inFunction: protection/security/anti-theft/energy savingFeatures: Strong, high strength, weather-resistant, anti-fadingInnovation: Hydraulic support rod/internal locking/cover wider than chassis (waterproof)Size: Provide common inner diameter sizes and support customizationPackage contents: 1×roof access cover, 4×boltsMeasurement tips: The inner diameter of the chassis ≥ the wellhead opening sizeBottom frame and cover frame: cover outer frame size = bottom frame inner diameter size + 11cm / 4.33inchThings to note:1. Regularly check the status of the sealing strip. It is recommended to clean it every six months and check whether there are aging cracks. If necessary, replace it in time2. Please use a soft cloth to wipe when cleaning, and avoid using corrosive cleaners to prevent damage to the surface coating and sealing materials

• Sturdy and durable: Made of aluminum alloy, light weight, load capacity up to 30kg/66lbs, high temperature spraying process, super resistant to fading, suitable for outdoor environments, long service life
• Support customization: the diameter is larger than the base, fundamentally eliminating leakage. We stock common inner diameter sizes and support customization according to the opening inner diameter you provide to ensure precise fit
• Rubber seals: Roof hatches have seals that prevent rainwater from penetrating into the house, ensuring dry indoor air, maximizing energy efficiency and reducing heating costs
• Integrated locking: Using a 90-degree rotating opening and closing handle, it can be easily operated with one hand. The built-in locking mechanism automatically locks after turning in place to prevent illegal opening from the inside and ensure the safety and reliability of the passage
• Wide range of applications: Access hatches provide convenient roof access for a variety of environments, including DIY, schools, warehouses, industry, commercial properties, etc. It can be used as emergency hatch cover, basement exit cover, emergency passage cover, basement cover, manhole cover