Smoke Vent Size
|
Daylight free area* Size
|
Roof opening area (m2)
|
Standard (no Wind deflectors)
|
With Wind deflectors
|
Free Area (m2)
|
Cv
|
Aa m2
|
Cv
|
Aa m2
|
1200 x 1050mm
|
1050 x 900mm
|
1.26
|
0.42
|
0.53*
|
0.63
|
0.79
|
0.88
|
1350 x 1050mm
|
1200 x 900mm
|
1.42
|
0.40
|
0.57*
|
0.64
|
0.90
|
0.99
|
1500 x 1050mm
|
1350 x 900mm
|
1.58
|
0.39
|
0.61*
|
0.64
|
1.01
|
1.12
|
1200 x 1200mm
|
1050 x 1050mm
|
1.44
|
0.44
|
0.63*
|
0.62
|
0.90
|
1.01
|
1350 x 1200mm
|
1200 x 1050mm
|
1.62
|
0.42
|
0.68*
|
0.63
|
1.02
|
1.16
|
1500 x 1200mm
|
1350 x 1050mm
|
1.80
|
0.40
|
0.72
|
0.64
|
1.15
|
1.32
|
1350 x 1350mm
|
1200 x 1200mm
|
1.82
|
0.43
|
0.78
|
0.63
|
1.14
|
1.34
|
1500 x 1350mm
|
1350 x 1200mm
|
2.03
|
0.41
|
0.83
|
0.64
|
1.29
|
1.52
|
1500 x 1500mm
|
1350 x 1350mm
|
2.25
|
0.42
|
0.95
|
0.63
|
1.42
|
1.72
|
* Not suitable for Stairwell use without Wind Deflectors because does not achieve an Aerodynamic Free Area of more than 0.70 Aa m2 in a stairwell as per the requirement of EN 12101-2
- Fire rating - achieves Class B-s1, d0 to BS EN 13501:Part 1 and deemed BROOF(t4) to BS EN 13501: Part 5 by Building Regulation
- Inclusive of wind deflectors where applicable to comply with regulations
- Complete with a Part L compliant polycarbonate triple skin for a high thermal performance & resistance to condensation
- Class B non fragility to ACR[M]001
- The polycarbonate skin lid with an impact resistance to EN1873 1200 joules and Class B non-fragility in accordance with ACR[M]001
- Opens to 140° in less than 60 seconds complying the requirements of the new Smoke Vent Standard BS EN12101-2
- Fire switch maximum of 8 per control panel
- Firemans priority switch maximum of 1 per control panel
- Smoke detector maximum of 22 per control panel
- 5amp control panel can power one smoke vent unit
- 8amp control panel can power up to two smoke vent units
- 8amp control panel will be require for the 1350mm x 1350mm unit and the 1500mm x 1500mm unit