Function: shading; cooling; hail and downpour protection Feature: black monofilament knitting screen; high strength; low shrinkage Kintted by high strength black monofilament, SO-Mono screens have remarkable shading and cooling effects during the daytime. In the winters, at night it helps reduce radiated heat loss from the plants. SO-Mono screens can protect greenhouses and plants inside from the damages caused by downpour; hail and falling items.