Correct and permanent external basement waterproofing

Key Facts

1 Evening out the substrate (if required)

Level the surface and close open joints (up to 5 mm) with AQUAFIN-1K in one coat by trowel or with suitable spray equipment.

2 Waterproofing wall-floor junctions

Form a mineral-based waterproof fillet with ASOCRET-M30 at the wall/floor transition. Apply a bonding slurry beforehand. This can be with either ASOCRET-M30 or AQUAFIN-1K.

3 Waterproofing pipe penetrations

Apply AQUAFIN-RB400 with a 4 mm notched trowel, bond ADF-pipe gasket without folds and then completely overcoat.

4 Waterproofing the foundation base transition

Apply a minimum of 2 coats of AQUAFIN-RB400 with a brush, steel float or suitable spray equipment. Install up to at least 30 cm above and at least 20 cm below the ground level.

5 Polymer modified bitumen coating - waterproofing

Apply COMBIDIC-2K-PREMIUM, COMBIDIC-2K-CLASSIC or COMBIFLEX-EL by trowel at a thickness appropriate for the type of moisture exposure. Apply the high build bitumen coating with a minimum 10 cm overlap over the foundation base waterproofing (picture 4).

6 Protective and slip fleece (with cationic bitumen)

Recommended application for masonry work, mandatory with concrete structures: Cut the ASO-Systemvlies-02 to the correct length and bed into the fresh bitumen coating without folds or overlapping, then smooth flat.

7 Protective and drainage board

Once the waterproof coating has dried, apply blobs of the high build coating COMBIDIC-1K to the unlaminated side of a suitable protection and drainage element and press onto the substrate, which has been waterproofed.

8 Perimeter insulation

Coller l‘isolant conformément aux instructions du fabricant, serré, en décalant d‘une rangée à l‘autre, sur toute sa surface, avec COMBIDIC-2K-CLASSIC ou COMBIDIC-2K-PREMIUM.