(1) A sacrificial material used to shield a waterproofing material from damaging external forces; (2) a separate layer of material installed on top of the membrane to protect a vegetative roof waterproofing membrane from damage.
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(1) A sacrificial material used to shield a waterproofing material from damaging external forces; (2) a separate layer of material installed on top of the membrane to protect a vegetative roof waterproofing membrane from damage.
« Back to Glossary