Kingflexinsulation foamed nitril rubber foam sheet is an environmental protection insulation material with closed cell structure. It is manufactured without the use of CFC’S, HFC’S OR HCFC’S.

Single-walled greenhouses and those made of soft PVC sheets are unsuitable for use in the winter months, per The Spruce. Double-walled polyethylene sheet greenhouses, double-walled glass greenhouses, ...