VMZINC's Structural Roof is a construction system combining a standing seam roofing in VMZ Zinc plus with rigid mineral wool insulation laid on supporting structures in steel, wood or concrete. It's a modular warm roof system for any type of deck (steel sheets, wood, concrete), suitable for low to high hygrometry, that can be used in all types of roof.
Swedish company Träullit produce Dekor Tiles from an environmentally-friendly recyclable material, made from ‘wood-wool’, cement & water. This combination of natural components is simple & clever. Wood fibres make the tiles sound-absorbent & give the product a heat-insulating, heat-retaining quality. This contributes to lower energy costs, reducing environmental impact. Cement provides strength, moisture resistance & fire protection. http://www.traullit.se/product/produkter/traullit-dekor/
Installing insulation is one of the most environmentally friendly things a homeowner can do. About 65 percent of U.S. houses are poorly insulated, a 2005 Harvard study estimates. The Best Insulation Types for Your Home | Tiny Homes