Natural Smoke and Heat Exhaust Ventilator with light dome “single flap”
MarTop SD/P
1. Moisture-proof veneer 9mm (P)
2. Insulation of basis frame:
- Mineral wool (W), ( λ=0,037 W/mK), 70 mm or 100 mm
- PIR plate (P), ( λ=0,022 W/mK), 70 mm or 100 mm
3. Lid:
- Light dome (D) or pyramid dome (P)
- 2-, 3- või 4– layered
- Clear (C) või opal (O)
4. Opening mechanism
5. 0,5 mm polyester sheet metal
6. Water sheets
7. Roof insulation
8. Load-bearing structure of the roof
If required, we will cover the ventilator with PVC roofing.
MarTop SD/M
1. 0.7 mm flat sheet Zn (M)
2. Insulation of basis frame:
- Mineral wool (W), ( λ=0,037 W/mK), 70 mm or 100 mm
- PIR plate (P), ( λ=0,022 W/mK), 70 mm or 100 mm
3. Lid:
- Light dome (D) or pyramid dome (P)
- 2-, 3- või 4– layered
- Clear (C) või opal (O)
4. Opening mechanism
5. 0,5 mm polyester sheet metal
6. Water sheets
7. Roof insulation
8. Load-bearing structure of the roof
If required, we will cover the ventilator with PVC roofing.
Technical data of NSHEV:
Resistance class – (Re)
Opening when loaded – (SL)
Work on low temperature – (T)
Wind load classification – (WL)
Heat resistance classification – (B)
| Re | 50 + (10 000) |
|---|---|
| SL | 750 |
| T | -15/-25 |
| WL | 1500 |
| B (G and F) | 600 |
| B (light dome) | 300 |
Measurements and aerodynamics:
| Measurements (mm) | Av [m2] | Cv [-] | Aa [m2] |
|---|---|---|---|
| 1000×1000 | 1.00 | 0.77 | 0.77 |
| 1000×1600 | 1.60 | 0.77 | 1.23 |
| 1000×2000 | 2.00 | 0.70 | 1.40 |
| 1200×1200 | 1.44 | 0.77 | 1.11 |
| 1200×1800 | 2.16 | 0.77 | 1.66 |
| 1200×2400 | 2.88 | 0.70 | 2.02 |
| 1200×2570 | 3.084 | 0.67 | 2.07 |
| 1000×2000* | 2.00 | 0.77 | 1.54 |
| 1200×2400* | 2.88 | 0.77 | 2.22 |
| 1200×2570* | 3.084 | 0.77 | 2.37 |
* Aerodynamics measured with wind deflectors
Why smoke control hatches with light domes?
Using light domes it is possible to create bright buildings. With light domes it is possible to take maximum of natural daylight and save money on lighting.
In the first case (140° in case of a fire), the hatch is opened fully and a natural draught is created in the building, exhausting carbon monoxides quickly and without hindrance.
In the second case, hatches can be used to control daily ventilation (hatch opens by 30°).