Laying cork backing
If it is necessary to smooth the unevenness of the screed, to reduce the negative impact of height differences when laying the laminate or parquet, use a cork substrate. Cork oak bark is used as a basis for its production, and therefore the main advantage is its environmental friendliness. The negative side of this material is moisture absorption.
And because such a substrate is not recommended for use in rooms where the humidity is increased. Otherwise, the surface of this material must undergo additional treatment with water-repellent agents. Before laying the cork substrate, it is necessary to prepare the base. If there are potholes or height differences, a cement-concrete screed is used or a ready-made mixture is used that has synthetic microfiber fibers. It must be remembered that the cork substrate should not be laid on a concrete screed. In order to waterproof the polyethylene under it creeps. On the surface with a wooden coating such a substrate can be laid without waterproofing.Further, the substrate roll is spread over the floor surface and secured with the help of double-sided construction tape in at least three places in order to eliminate its shift. At the joints of the substrate with the walls, a gap is left to remove moisture through it. These places will then be closed with a plinth.
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