Moisture testing is a mandatory step before installing flooring over concrete. High levels of moisture vapor can pass through concrete, causing adhesive failure, material warping, or microbial growth. Professional installers perform calcium chloride or relative humidity tests to ensure moisture levels are within the manufacturer's specified limits. Failing to verify moisture levels can void product warranties and lead to expensive premature failure of the finished floor.
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Why is moisture testing a critical step during pre-installation project planning?
Moisture testing prevents failures like warping, buckling, or mold growth caused by moisture vapor emissions from concrete subfloors. It confirms if a subfloor is ready for installation, protecting the longevity of the flooring material and warranties.