Polytunnel Roof Vent

The spring closing design allows it to be closed tight shut when ventilation is not required.

Polytunnel roof vent. Polytunnel roof vent the ultimate polytunnel roof ventilation system for multi span polytunnels. Polytunnel roof vent easy to install roof vent with simple pull cord operation. The ultimate polytunnel roof ventilation system for multi span polytunnels. Mechanically operated on a rack pinion system running off a 24vdc motor.

Manually operated by a simple pull cord with a spring closing design to allow it to be closed tight when not in use. Using a simple pull cord operation it can be open and closed manually. Controlling temperature and humidity is critical though and i ve tackled the problem of polytunnel ventilation by installing a solar powered cooling system. These roof vents can be incorporated into your new polytunnel design or retrospectively fitted to existing polytunnels.

Easy to install roof vent with simple pull cord operation. The spring closing design allows it to be closed tight shut when ventilation is not required. These roof vents can be incorporated in to your new polytunnel design or retrospectively fitted to existing polytunnels. The spring closing design allows it to be closed tight shut when ventilation is not required.

80 watt solar panel fixed to frame. 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. This roof vent which can be easily installed with support bars. Polytunnels like greenhouses can get very hot in sunny weather.

Polytunnel roof vent easy to install roof vent with simple pull cord operation. Stabilized polycarbonate provides un matched clarity for maximum light transmission while the aluminum construction ensures long service life. Mechanically operated on a rack pinion system running off a 24vdc motor. Find this pin and more on greenhouseby tina smith.

Used to release excessive heat build up in your polytunnel without having to open the doors. Used to release excessive heat build up in your polytunnel without having to open the doors.