WHAT IS A DIMPLED (PROFILED) MEMBRANE?
A dimpled, or profiled membrane, is a waterproofing material made from high-density polyethylene (HDPE). Its distinctive feature is a textured surface with cone-shaped protrusions (dimples) that create a ventilation gap between the membrane and the protected structure. This design ensures efficient moisture drainage and provides additional mechanical protection.
Main functions of a dimpled membrane:
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Waterproofing — prevents groundwater and surface water from penetrating building structures.
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Drainage — helps remove moisture through channels formed between the dimples.
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Protection of the waterproofing layer — protects the main waterproofing material from mechanical damage.
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Ventilation — creates an air gap that helps reduce condensation formation.
Applications of dimpled membrane:
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Protection of foundations and underground structures
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Waterproofing of basements, technical rooms, and underground parking areas
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Flat and inverted roofing systems
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Green roof systems
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Road construction and retaining wall systems
Accessories for installing dimpled membrane
For reliable installation, the following components are used:
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Dowels or anchor fasteners — for fixing the membrane to walls or foundations;
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Plastic fixing strip — for secure and even fastening of membrane edges;
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Butyl sealing tape K-2 — a double-sided sealing tape used for sealing joints between membrane sheets.
Specifications:
- Material: HDPE
- Size: 2x20m
- Density: 500 g/m2
- Thickness: 0.5 mm
- Stud height: 8 mm