Polytunnel roof vent easy to install roof vent with simple pull cord operation.
Polytunnel roof vent.
These roof vents can be incorporated in to your new polytunnel design or retrospectively fitted to existing polytunnels.
It is used to release excessive heat buildup in your polytunnel.
This roof vent which can be easily installed with support bars.
The ultimate polytunnel roof ventilation system for multi span polytunnels.
Used to release excessive heat build up in your polytunnel without having to open the doors.
Weighing only 8 5 lbs the roof vent uses standard wire lock and channel to attach securely to greenhouse poly film.
A polytunnel roof vent lnstalled simply by cutting a 30cm hole in your polytunnel roof then pushing though the polythene is ideal for removing excess heat without opening the doors.
Polytunnels like greenhouses can get very hot in sunny weather.
Used to release excessive heat build up in your polytunnel without having to open the doors.
Find this pin and more on greenhouseby tina smith.
Easy to install roof vent with simple pull cord operation.
Mechanically operated on a rack pinion system running off a 24vdc motor.
The spring closing design allows it to be closed tight shut when ventilation is not required.
Mechanically operated on a rack pinion system running off a 24vdc motor.
Controlling temperature and humidity is critical though and i ve tackled the problem of polytunnel ventilation by installing a solar powered cooling system.
The spring closing design allows it to be closed tight shut when ventilation is not required.
Polytunnel roof vent the ultimate polytunnel roof ventilation system for multi span polytunnels.
Manually operated by a simple pull cord with a spring closing design to allow it to be closed tight when not in use.
Used to release excessive heat build up in your polytunnel without having to open the doors.
The spring closing design allows it to be closed tight shut when ventilation is not required.
Stabilized polycarbonate provides un matched clarity for maximum light transmission while the aluminum construction ensures long service life.
80 watt solar panel fixed to frame.