Balcony waterproofing with Dual
A balcony is similar to a low-slope roof in structure. The inclination must be at least 1:80 so that water can be led off. Kerabit Dual may be applied onto a wood or concrete understructure. A concrete surface is treated with an adhesive solution Kerabit BIL 20/85 prior to laying the membrane.
1. Decking or Kerabit OSB Roof Board
2. Eave flashing
3. Kerabit Dual Bitumen Membrane, coating with a wooden rack or slab
A drip edge flashing is installed to the edge of the balcony. A triangular batten is fixed next to the wall and Kerabit Dual is turned up onto the wall for at least 300 mm.