EXPOSED WATERPROOFING WITH HEAT-APPLIED, SELF-PROTECTIVE, BITUMINOUS MEMBRANE

Warm roof with thermal insulation panel, waterproofed with a double layer of bituminous membrane, applied hot, and self-protected with a layer of slate flakes

1 SUBSTRATE / LOAD-BEARING ELEMENT

Must have a minimum slope of 1%. Alternatively, a sloping screed can be created using WINPLAN 370 or WINPLAN PRO. For bonded screeds 1–3 cm thick, it is recommended to use WINGRIP® NEXT as an adhesion promoter, applied wet-on-wet;

2 PRIMER

Application with roller, brush, or spray of ECOIMPRIMER bituminous primer, for a total consumption of 150–200 g/m²;

3 VAPOR BARRIER

Hot application of the COVERBLOCK 4 mm bitumen–polymer membrane, which serves as a vapor barrier and is reinforced with a glass-fiber mat coupled with rot-proof aluminum foil.

4 ADHESIVE FOR INSULATION BOARDS

Roller or brush application of the water-based bituminous adhesive WINGLUE or WINGLUE FAST, with a consumption of 0.8 kg/m².

5 THERMAL INSULATION ELEMENT

Suitable for torch application of bituminous membranes.

6 WATERPROOFING (FIRST COAT)

First layer of elastoplastic bituminous membrane (BPP) applied hot, EXPERTA 300, with cold flexibility down to –15 °C, reinforced with continuous-filament polyester non-woven fabric stabilized with glass, rot-proof;

7 REINFORCEMENT

Second layer of elastoplastic bituminous membrane (BPP) applied hot, EXPERTA 400 MINERAL, with cold flexibility down to –20 °C, reinforced with continuous-filament polyester non-woven fabric stabilized with glass, rot-proof. The upper surface of the membrane is finished with natural or colored slate flakes or ceramic granules.