New automatic smoke-ventilating PVC-U commercial window

Emplas has launched a smoke-activated PVC-U window that opens in the event of fire, channelling harmful smoke and gases away from corridors, stairs and lobbies, allowing a building’s occupants to escape quickly and safely.

Designed for the commercial sector, Emplas’s range of NSHEV (Natural Smoke and Heat Exhaust Ventilators) windows are made using the Optima profile from Epwin, and are fully compliant with BS EN 12101-2, having been rigorously tested and accredited by SE Controls.


“Smoke is the number one killer in the event of a fire, and it is vital that buildings can respond quickly and automatically so that occupants can escape unharmed,” Kush Patel, Managing Director of Emplas, said. “Working closely with commercial developers, we have designed top-hung, side-hung and bottom-hung variants, in a range of 28 colours in a range of finishes, to suit a variety of applications.

“Producing these windows in PVC-U – rather than aluminium – gives our clients greater design flexibility, while keeping costs to a minimum. We can also achieve U-values as low as 0.9W/m2K.”

Key to the NSHEV windows’ design is its ability to open completely automatically in the event of a fire.

“Our NSHEV windows require absolutely no human intervention for them to work when required, and we have had them fully tested by SE Controls to make sure they comply with the relevant standards,” Kush said.

“As a result, our NSHEV windows provide vital daylight, ventilation and smoke control in the event of a fire, giving building owners and building occupants full confidence in their ability to perform.”

NSHEV windows are installed in areas of a building, protecting occupants by preventing the excessive build-up of smoke and noxious fumes that would obscure the view and cause suffocation.

Fitted correctly, NSHEV windows from Emplas comply with BS EN 12101-2 and building owners will receive a Declaration of Performance.

Download the NSHEV leaflet here

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