The insulation boards are bonded either with construction adhesive or with bituminous waterproofing compound (e.g. thick coating). In groundwater or in the area of pressurized water, it is necessary to bond the panels and panel edges over the entire surface as well as to fill the slab joints. The perimeter insulation can be glued to the basement wall with a thick coating. If the thick coating is also used as a seal in accordance with DIN 18195, it is essential to ensure that the thick coating is applied and dried beforehand in a sufficient minimum layer thickness (3 mm or 4 mm).
Source: bauwion
