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Hydra-prest Slabs from a variety of manufacturers are used both on grade (as a 'stepping stone') and on roof decks to insulate roofing membranes both against UVA and UVB rays and to level a walking surface for patios, terraces, etc., when placed on a pedestal to allow drainage. |
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This page was last updated at
15:23:22 -0700
on Wednesday, August 10, 2005
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