Inflatable protective groundsheet and method of inhibiting ground frost

摘要

A protective groundsheet 10 comprises a flexible sheet-like body 11 provided with a plurality of internal air passages 14 extending substantially over the area of the body and with an inlet communicating with the passages 14 and connectible with a source of pressurised air, such as a pump. The body 11 is inflatable under feed of pressurised air via the inlet to the passages 14 and is provided on a side thereof intended in use to face the ground G with outlet perforations 19 allowing escape of air under pressure to combat or inhibit ground frost or icing. The groundsheet may comprise two sheets of flexible material connected together by seams 13 separating the passages. The seams maybe weld seams. Also disclosed is a method of inhibiting ground frost by use of the aforementioned groundsheet.