OLS ABRI external screens are suitable to protect outdoor crops against certain adverse weather conditions such as strong sunshine, night frost, hail, downpour and wind.  The strong monofilament yarns used guarantee a long useful life, even under severe weather conditions.

The screen is reinforced in such a way that one can hang it onto polyester or steel wires with special synthetic suspension hooks. In this way the screen can be completely opened and closed so that it is possible to react adequately to changing weather conditions.

OLS ABRI screens consist of aluminium strips with open spaces in between these strips. The strips that reflect unwanted sun radiation and the open structure allow for sufficient airflow. The overall result of this is a considerable reduction of daytime crop temperature. As the aluminium strips reduce heat radiation from escaping the greenhouse, OLS ABRI screens decrease the heat loss from the crop during night-time: As the plant temperature will stay higher, the night frost damage will be limited to a minimum.