| 摘要 |
A flashing material (100) provides a moisture drainage passage to prevent water damage to buildings. The flashing material (100) includes a planar portion for providing a drainage plane for the passage of moisture along a plane defined by said planar portion. Said planar portion includes a porous sheet (110) capable of permitting the passage of water therethrough along the drain plain. A water-impervious layer (120) is bonded on a first side to the planar portion; and a layer of adhesive (150) is applied to a second side of the water-impervious layer (120). The flashing material (100) is particularly useful for installing a portal such as a window or door in an opening in a wall, or for sealing joints in roofs, for installing skylights and similar such uses.
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