| abstract |
The present invention is a subterranean waterproofing and methane barrier sheet membrane with an aluminum protective layer and methods of making and using the same, and more particularly, the present invention relates to a two-layer system comprising an aluminum finish Or at least one moisture- or water-repellent bitumen barrier sheet membrane of an aluminium layer which, when combined, is also a methane gas barrier and is UV-stabilized for use in buildings under construction and placed under or around the foundations of buildings or dwellings or on the underground retaining walls of foundations. Optionally, liners and/or drainage protection media can also be used with the dual layer system of the present invention. |