TREMDrain® QSP (Quick Set Panel) is a three-part prefabricated drainage panel and protection board consisting of a formed perforated polystyrene core covered on dimple side with a nonwoven, needle-punched polypropylene filter fabric along with a breathable crosshatched fabric on the backside. The nonwoven fabric allows water to pass into the drainage core while restricting the movement of soil particles. The plastic core provides a compressive strength and allows the flow of water to the TREMDrain Total Drain System. The crosshatched fabric allows the panel to adhere to the wet tacky membrane and still allows the membrane to cure from the flow of air through the perforated drainage core.
TREMDrain QSP is used in conjunction primarily with TREMproof® 250 GC, TREMproof 260, TREMproof 201/60 and Paraseal® Membranes. TREMDrain QSP is designed only for vertical application where a fast-tracked application with liquid applied membranes is desired.
Note: TREMDrain drainage and protection materials are not for use beneath sand-set, vehicular paver applications.
The use of a Tremco drainage mat provides the following advantages: 1. The water flow rate is equal to or better than the aggregate backfill.2. Aggregate backfill needs to be trucked to the site and the dirt backfill hauled from the site. With drainage, both of these procedures are eliminated.3. Aggregate adds additional weight-bearing to the foundation wall. Drainage mat does not.4. Drainage mat allows for full head-to-footer flow of water.5. Drainage mat can be fitted with outlets and drainage accessories to further move the water away from the structure.
Contractors have successfully used daubs of the Tremco membrane originally used to waterproof the foundation. Insulation hangers may be set into wet daubs of Tremco membrane. 3M Holdfast 70 M has been independently evaluated by 3M and Tremco below-grade waterproofing membranes are listed as compatible on their web site. Backfilling should commence as soon as possible after installation of the drainage mat.
Drainage mat is principally designed to reduce hydrostatic head pressure and direct water to a perforated drainage system. A protection course is a puncture-resistant material designed to minimize or prevent possible damage to the waterproofing membrane prior to or during concrete pour and backfilling.
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