Commercial Waterproof Skylight Window Roof Hatch, Access Roof Window Cover Load-Bearing and Stable for Shafts, Roofs, Terraces, Vents(55x55cm/21.65x21.65in)

Brand：HSOQNThe aluminum alloy roof cover specially designed for safe and convenient passages uses hydraulic power-assisted opening and internal locking design to save worry and effort every time you enter and exit, providing reliable protection and ensuring your indoor safetyProduct 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 accurately measure the size of the hole before installation, and ensure that a 1-2 cm installation margin is reserved for the product all around2. In case of extremely cold weather, please check whether the sealing strip is frozen and do not force it to open before thawing

• Sturdy and durable: Made of thickened aluminum alloy, high load-bearing and light weight. The surface is spray-painted at high temperature and has strong environmental adaptability. It is not afraid of harsh outdoor conditions such as severe cold, heat, humidity and vibration, and is durable and reliable
• 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
• Sealing and energy-saving: The roof access cover has built-in highly elastic sealing strips that fit closely to the joint to prevent rainwater from seeping through gaps, reduce indoor temperature loss, and achieve energy saving, consumption reduction, and all-weather protection
• 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: Suitable for various scenarios such as residential attics, commercial buildings and industrial plants. It can be used as an access door, escape passage or basement exit to flexibly meet the entry and exit needs of different spaces