Natural Smoke and Heat Exhaust Ventilator with blind hatches “single flap”

MarTop SF/P

1. Moisture-proof veneer 9 mm (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:

  • Gabled (G) or flat (F)
  • Metal structure Zn
  • Insulated with 100mm PIR plate
  • Covered with 0,5mm purex sheet

4. Opening mechanism
5. 0,5mm polyester sheet
6. Water sheets
7. Roof insulation
8. Load-bearing structure of the roof

If required, we will cover the ventilator with PVC roofing.

MarTop SF/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:

  • Gabled (G) or flat (F)
  • Metal structure Zn
  • Insulated with 100mm PIR plate
  • Covered with 0,5mm purex sheet

4. Opening mechanism
5. 0,5mm polyester sheet
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

Standard heights for NSHEV:

  • 400 mm
  • 600 mm
  • 750 mm
  • 900 mm

Documents: