Certified smoke shaft system
A dome vent is located at the top of the internal shaft, providing a natural smoke ventilation solution.
In the case of smoke detection within a communal corridor (without any external walls), the damper on the ‘fire floor’ will open along with the roof dome vent. This will draw the smoke and poisonous gasses up and out via the vertical shaft. Dampers on other floors will remain closed to create a chimney effect.
Certified NSHEV windows
Dyer worked with D&M Windows to provide fully certified NSHEV windows using the Aluprof aluminum system. Dyer supplied and installed sets of drives to power open the windows, operated by a smoke control ventilation panel.
In the case of smoke detection within a communal corridor, the NSHEV window on the ‘fire floor’ will open to draw the smoke and gasses out. Windows elsewhere will remain closed to ensure the smoke is drawn out of the open window as well as to stop the smoke re-entering the building.