Green-vent Solar Calculator

The amount of ventilation an attic needs is determined by many factors. Know the minimum number of Green-vent Solar attic fan
that you need based on the size and roof profile of your home.

Floor area of
Roof / Attic Space
Low Angle/Pitch
up to 18° (4/12)
Med Angle/Pitch
up to 33° (8/12)
High Angle/Pitch
up to 45° (12/12)
100m²
(1076 sq ft)
1 Fan* 1 Fan*  1 Fan
150m²
(1614 sq ft)
1 Fan* 1 Fan* 1 Fan
200m²
(2152 sq ft)
1 Fan* 1 Fan 2 Fan
250m²
(2690 sq ft)
1 Fan 1 Fan 2 Fan
300m²
(3230 sq ft)
1 Fan 1 Fan 3 Fan

* These size areas requiring ventilation may only require the use of  1 x 15W Green-vent Solar Attic Extraction Fan.
    Ask your Authorized Dealer for more information on this alternative model of GVS
 






 

 

 

Floor area of
Roof / Attic Space
Low Angle/Pitch
up to 18° (4/12)
Med Angle/Pitch
up to 33° (8/12)
High Angle/Pitch
up to 45° (12/12)
100m²
(1076 sq ft)
1 Fan* 1 Fan*  1 Fan
150m²
(1614 sq ft)
1 Fan* 1 Fan* 1 Fan
200m²
(2152 sq ft)
1 Fan* 1 Fan 2 Fan
250m²
(2690 sq ft)
1 Fan 1 Fan 2 Fan
300m²
(3230 sq ft)
1 Fan 1 Fan 3 Fan
 
* These size areas requiring ventilation may only require the use of  1 x 15W Green-vent Solar Attic Extraction Fan.
    Ask your Authorized Dealer for more information on this alternative model of GVS