Dehumidification in construction

In the construction industry, one of the biggest things that keep construction managers, general contractors and subcontractors awake at night is meeting increasingly tight deadlines while keeping quality high. Among many others, one challenge often faced: a concrete slab with elevated moisture levels.

Waiting for the natural drying process is often unfeasible due to the time it can take to try, causing delays. Unless the specifications for moisture content in the concrete are met, the next floor cannot be constructed, sealers can’t be applied and flooring subcontractors cannot proceed. This chain-reaction of delays pushes up costs and risks over-running deadlines for completion.

Of the various building materials, concrete can be one of the most vexing sources of moisture. Although a slab may appear to be dry, the appearance can be misleading: Under average ambient conditions, a concrete slab poured within an enclosed building will dry at a rate of about 1 inch per month. But even that is a generalisation; the actual rate will differ based on the concrete batch ingredients (the mix design), curing procedures, and ambient conditions—indoor and outdoor temperature and humidity.

Construction concrete.png

Unless the excess moisture is somehow removed, several problems may result:

  • Moisture migration to the surface, which can result in failure of adhesives, discoloration of flooring materials, and blisters in coatings.
  • Growth of mould in other materials as high ambient moisture remains.
  • Poor initial adhesion of flooring installed on the slab.

Munters can provide the perfect climate to help prevent construction delays and tackle moisture issues. Contact Munters to enquire about the range of products designed to deal with the demands within the construction industry.

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