External basement waterproofing with cold self-adhesive waterproofing membranes

1 Joint sealing
KÖSTER Banda de Supresión
2 Preparing wall/floor junction
KÖSTER NB 1 Gris
3 Installing fillets
KÖSTER Repair Mortar Plus
4 Primer
KÖSTER KBE Liquid Film
5 Waterproofing layer
KÖSTER KSK SY 15
6 Waterproofing membrane ending
KÖSTER KBE Liquid Film
7
KÖSTER SD Protection and Drainage Sheet 3-250

Fast, clean, and easy: Exterior basement waterproofing with KÖSTER KSK cold applied, self adhesive waterproofing membranes. No drying time, instantly watertight, with a tight control of consumption. Apply a primer coat of KÖSTER KBE Liquid Film on clean, solid substrates. In temperatures down to –10 °C use water-free KÖSTER KSK Primer SP. Pipe penetrations are sealed using flanges cut to size from KÖSTER KSK Membranes. In areas especially in danger of water creeping behind the waterproofing such as wall-floor junctions, a substrate preparation with KÖSTER NB 1 Grey mixed with KÖSTER NB 1 Flex is applied. To avoid stresses in the elastic waterproofing, rounded fillets made of KÖSTER Repair Mortar are installed in interior corners.

The actual area waterproofing is generally done with KÖSTER KSK SY 15. It is applied crease free to the substrate. The membranes are overlapped 10 cm. Corners and connections are made according to the directions on the packaging and according to the Technical Guidelines, and these areas are covered with KÖSTER KBE Liquid Film. On vertical areas the top edge is mechanically fastened and these fasteners are also coated with KÖSTER KBE Liquid Film. In temperatures down to –10 °C use KÖSTER KSK AW 15 instead of KÖSTER KSK SY 15. In this case the overlapped edges, corner details and mechanical fasteners are coated with KÖSTER BS 1 Bitumen Paste.

Before backfilling the waterproofing is protected from mechanical damage and settling with KÖSTER SD Protection and Drainage Sheet.

Always adhere to the specifications in the respective Technical Guidelines.

 

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