When used under floor toppings or screeds, spread the waterproofing Hydro B film on a previously levelled concrete substrate. Then join the waterproofing film tightly with a horizontal insulation layer of foundation walls, Confol Alfa. Adjust the film width in a way reducing the number of film connection; however, when this is not possible, waterproofing should overlap by at least 15 cm, and then sealed with butyl adhesive. The film should reach at least 20 cm up the wall. |
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