Wood Substrates
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Every Substrate Presents Unique Challenges
All wood materials, including OSB, plywood, and framing members, are subject to expansion, contraction, bending, and deflection as a result of changes in moisture content and loading. Further, these deformations fluctuate over the life of the building structure.
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Uncoupling
Schluter-DITRA’s uncoupling function protects the ceramic or stone tile covering from the aforementioned deformations by neutralizing the differential movement stresses between the wood structure and the tile, thus eliminating the major cause of cracking and delaminating of the tiled surface.
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Waterproofing
Since wood structures are sensitive to moisture, Schluter-DITRA’s waterproofing function adds an essential element to the flooring assembly by providing simple, effective, and permanent moisture protection.
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Vapor Management
Wood continually absorbs and releases moisture. The free space beneath the Schluter-DITRA membrane allows the wood to breathe and provides a route for any residual moisture in the wood substrate to escape.
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Support/Load Distribution
Since Schluter-DITRA is virtually incompressible within the tile assembly, the advantages of uncoupling are achieved without sacrificing point load distribution capabilities. Therefore, DITRA can replace a second layer of underlayment in most applications.
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By addressing all of the challenges associated with today’s fast, lightweight construction methods, Schluter-DITRA provides a durable installation system for ceramic and stone tile over wood substrates.
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