Well Access/Escape Hatch Caps, Access Roof Window Cover Multiple Size Options for Villa Attics, Warehouses, Factories, Ventilation Wells(70x70cm/27.56x27.56in)

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. Please measure the opening accurately before installation and leave a gap of 1 to 2 cm around for installation2. In case of extremely cold weather, please check whether the sealing strip is frozen. Do not force it to open before thawing to avoid damaging the sealing structure

• Weatherproof skylight cover: Made of thickened aluminum alloy, lightweight design and strong load-bearing capacity. Using multi-layer spray painting process, it is suitable for cold, hot, humid, vibration and other harsh weather conditions
• Flexible size: We provide a variety of inner diameter sizes to choose from. The cover adopts a wide-edge design to effectively block rainwater. If there is no suitable size, we also support customization according to the size you provide
• Safety protection: Equipped with an integrated sealing strip to effectively prevent rain and moisture; integrated 90-degree rotating handle, which automatically locks when turned in place, preventing illegal opening from the inside, safe and worry-free
• Versatility: Not only provides convenient roof access for various environments such as factories, warehouses, workshops and businesses. Can also be used as attic skylight cover, emergency hatch cover, basement exit cover, basement cover, manhole cover
• Convenient installation: Pre-set precise holes with expansion screws, just place the patio cover in the appropriate position, drive in the expansion screws to secure it firmly, and sealant can also be used to fill the gaps