NSHEV Rooflight
Ideal for head of stair application
The centre pivot window has a dark grey exterior with natural or white polyurethane interior.
The smoke ventilation window is equipped with a 24v D+H chain drive fitted at the base of the window.
Performance Features
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EN 12101-2 certified
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Opening within 60 seconds
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Multiple sizes and Conservation option available
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Dual purpose, smoke and natural ventilation
Technical Data
| Geometric Free Area | 1m² | 1.5m² | |
| Certification | EN 12101-2 | EN 12101-2 | |
| Aerodynamic free area (Aa) | 0.71m² | 1.01m² | |
| Reliability class (Re) | 1000 | 1000 | |
| Wind load class (WL) | 3000 N/m² | 3000 N/m² | |
| Snow load class (SL) | 1775 N/m² | 1500 N/m² | |
| Resistance to heat | B300 (300 °C) | B300 (300 °C) | |
| Low ambient temperature rating (T) | -15ºc | -15ºc | |
| Maximum opening angle | 90º | 90º | |
| Opening time | <60 seconds | <60 seconds | |
| Voltage | 24v | 24v | |
| Current consumption | 1.4 amp | 1.4 amp | |
| Cable | 2.5m silicone | 2.5m silicone |
NSHEV Rooflight at work: Sanctuary Court
Project
Sanctuary Wilmslow is a Jones Homes new-build community exclusively for people over 55 or retired. D+H UK provided a natural smoke ventilation system within the scheme‘s apartment building
System
Our system serves corridors / staircases over 15 zones; Zones 1-3: vented via head of stair NSHEVs. Zones 4-15: vented via four smoke shafts, serving Ground to 2nd floor corridors
In the event of a fire
A signal from the fire alarm interface will open the smoke damper, head of shaft vent and head of stair NSHEV within the fire zone. Smoke will be drawn up and out of the corridor and stairwell, providing clear access for firefighters Smoke dampers on all other floors will remain closed during this to prohibit the spread of the smoke
