Abstract: The present invention provides a novel laminate comprising an inner support layer comprising a cross-laminated polyethylene, a middle layer which is capable of reflecting infra-red radiation comprising a metallized material selected from the group consisting of aluminized polyethylene, polyethylene terephthalate, and metallized polyester, and a protective outer layer which protects the middle metallized layer from corrosion comprising a compound which is substantially transparent in the infra-red wavelength range selected from the group consisting of low molecular weight acrylates, low density polyethylene, polymethylene, diazo methane, and isomerized cyclo-caoutchouc. The present invention also provides a method for thermally insulating a predetermined enclosed volume defined by walls comprising the envelope of the volume comprising the step of lining at least one of the walls with the novel infra-red radiation-reflecting laminate of the present invention.