Waterproofing with hot bituminous membranes
Warm roof with heat-insulating panel, waterproofed by a double layer of hot-applied bituminous membrane under ballast.
1 SUBSTRATE / LOAD-BEARING ELEMENT
must have a minimum slope of 1%. Alternatively, a sloped screed can be created using WINPLAN 370 or WINPLAN PRO. For bonded screeds with a thickness from 1 to 3 cm, it is recommended to use WINGRIP NEXT as a fresh-on-fresh bonding promoter.
2 PRIMER
Application by roller, brush, or spray of the bituminous primer ECOIMPRIMER, with a total consumption of 150–200 g/m².
3 VAPOR BARRIER
Hot application of the 4 mm COVERBLOCK bitumen–polymer membrane, which acts as a vapour barrier and is reinforced with a fiberglass mat coupled with a rot-proof aluminium sheet.
4 ADHESIVE FOR PANELS
Application by roller or brush of the water-based bituminous adhesive WINGLUE or WINGLUE FAST, with a consumption of 0.8 kg/m².
5 THERMAL INSULATION ELEMENT
6 WATERPROOFING
Construction of a double layer of elastoplastomeric (BPP) bituminous membrane applied hot: EXPERTA 300, with cold flexibility of –15 °C, and EXPERTA 400, with cold flexibility of –20 °C. The membrane is reinforced with non-woven continuous-filament polyester stabilized with glass, rot-proof.
7 VERTICAL UPSTAND WATERPROOFING
Construction of the vertical upstand of the waterproofing by hot application of EXPERTA 400 elastoplastomeric (BPP) bituminous membrane, with cold flexibility of –20 °C. The membrane is reinforced with non-woven continuous-filament polyester stabilized with glass, rot-proof.
8 FLASHING
Installation of flashing for the fastening, protection, and sealing of the vertical upstand of the bituminous membrane.