Siltumnīcas Plēve Baumera

Stabilized polyethylene film is a film resistant to ultraviolet rays. They are usually blue in color to distinguish them from regular (unstabilized) films.
This film can be used outdoors, under the open sky - it does not break down from sunlight for several seasons.
It is used for covering greenhouses, in construction - for vapor insulation, waterproofing, covering windows, for long-term outdoor covering - for covering firewood, for covering buildings under construction and the like.