| 摘要 |
599920 Disclosed is a foil material that is heat reflective or has a heat reflective layer for installation over a plurality of regularly spaced joists to insulate a floor structure, the material having a plurality of spaced apart sets of linearly arranged holes extending across the width of the material, the holes intended to overly the joists so that once the material is in place, flooring material can be adhered to the joists through the holes, each set of linearly arranged holes allowing access to 50 to 98 percent of the length of the joist overlain by the set of holes. In an embodiment, each set of linearly arranged holes allows access to 65 to 90 percent of the length of the joist overlain by the set of holes. The spacing of the sets of holes from one another is greater than the spacing of the joists such that, in use, the material between adjacent joists hangs below the top of the joists to define an insulating air gap between the material and the flooring material once the flooring material is installed. The material further comprises fold lines either side of each set of holes to enable the material to be formed into a rectangular trough. The material further comprises indicia either side of each set of holes to indicate where the material should be folded to be formed into a rectangular trough. The material is formed into a roll so that it can be rolled out across the joists during installation. |
