Solid Överfalsad Hatch, 2 pcs
1000 x 700 mm clear opening, cover with frame in galvanized steel according to EN ISO 1461,
rubber seal, cast-in frame, handle/prepared for padlock.
Protective grating, removable. Galvanized steel ISO EN 1461, bolted into concrete walls.

 

Solid Överfalsad – Smoke Ventilation Hatch in Tread Plate
Robust Hatch for Ventilation and Safety

The Solid Överfalsad is a durable and versatile tread plate hatch designed to withstand harsh conditions while ensuring effective smoke ventilation. It is primarily intended for installation in roofs, technical spaces, or permanent infrastructure where the controlled release of smoke is critical for both personal safety and damage minimization. Thanks to its robust construction and multiple customization options, Solid Överfalsad can be used in everything from commercial buildings to industrial facilities and public infrastructure. It functions both as a smoke vent and an access hatch, making it a flexible solution in modern building projects.

 

Materials and Function

• The hatch is made from durable tread plate and is available in hot-dip galvanized steel, stainless steel, or aluminum depending on the intended environment
• Stay brackets securely hold the hatch in the open position for maintenance and safe smoke evacuation
• Heavy-duty hinges allow smooth and controlled opening
• The hatch can be fitted with fittings for standard rescue service padlocks according to applicable standards
• Custom sizes are available to suit specific building requirements

 

Options and Customizations

• Gas spring assist available, making the hatch easier to operate even by a single person
• Insulated cover available for temperature-sensitive installations or to reduce energy loss
• The hatch can be prepared for flush mounting in worktops or fixed installations
• Surface treatments for extra corrosion protection in marine or aggressive environments

 

Applications

• Can also be installed in technical spaces, garages, shelters, and other areas where secure and reliable opening is required
• Flexible use as both an emergency exit and a service access point in environments requiring technical access combined with high safety and functionality

 

Benefits of Solid Overlapping

• Safe solution compliant with smoke ventilation requirements
• Robust design withstands weather, wear, and frequent use
• Customizable with locking systems, spring mechanisms, and insulation
• Long lifespan, low maintenance needs, and high safety level

 

Other Floor and Ground Hatches in the Range

• HSE75: Interior floor hatch with gas spring, insulation, and hinges – particularly suitable for basements and technical spaces
• HIAC/SAC: Hatches with smooth or recessed surface for urban architecture and technical environments
• SEFAC: Heavy-duty steel construction with high load classes, commonly used in infrastructure projects
• Gatic: Heavy cast iron hatches with gas and water tightness – also certified for smoke ventilation

 

Installation and Recommendations

Solid Överfalsad should be installed according to current regulations and the manufacturer’s instructions. It is important to carefully plan placement in relation to fire compartment boundaries and access routines for both maintenance and emergency situations.

Recommendations:

• Ensure correct fastening and sealing around the hatch
• Test the opening mechanism during commissioning
• Follow up with regular inspections of hinges, springs, and stay brackets
• Choose the appropriate material and surface treatment based on exposure to weather and environmental conditions