Concrete floors or screeds need sufficient time to dry before you can start installing your Quick-Step Laminate floor on top. As a rule of the thumb, you should wait one week per cm of screed (thickness) up to 4 cm. Wait twice as long for every additional cm (thickness) up to 6 cm and wait 4 weeks for every additional cm beyond 6 cm.
Moisture migrates from the bottom to the surface. This takes time. For new concrete floors, you should always lay a plastic foil on the concrete floor before installing the Quick-Step Laminate panels. All Quick-Step underlays have built-in plastic foil. Use Quick-Step underlays to avoid problems later on.
|Screed thickness||Advised drying time|
|<4 cm||1 week per cm|
|5 cm||6 weeks|
|6 cm||8 weeks|
|> 6 cm||
+ 4 weeks per additional cm
An example: for a 6 cm thick concrete floor, you should count on at least (4 x 1 week) + (2 x 2 weeks) = 8 weeks of drying time. For concrete floors thicker than 6 cm, respect 4 weeks of drying time per additional cm.
Tip: always make sure the building is sufficiently ventilated.
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