Avoid the problems! Don’t underestimate the placement of Gypsum Cement Underlayment in construction or, as a floor covering contractor, the installation of glue down flooring (especially resilient flooring) over a Gypsum surface. Gypsum concrete offers many advantages over regular concrete such as fire resistance, acoustical properties and a lighter over all weight. When properly mixed and placed it can offer the same compressive strength (Industry recommendation 4000psi /27mpa for resilient flooring), is easier to place and smooth out due to its runnier consistency and is also less prone to cracking.
Most often used in wood frame construction as an underlayment (thickness of 1 ½” /38mm) and also when hydronic radiant heating systems are present. Issues such as dusting, cracking, de-bonding, and overly soft surfaces leave projects with significant problems, corrective costs and delays and are mostly caused by poor planning, over watering, improper mixing and questionable site conditions. Refer to NFCA Floor Covering Reference Manual Specification Guide - Section AA2 - 03-54-12 – Gypsum Cement Underlayment.
Most often used in wood frame construction as an underlayment (thickness of 1 ½” /38mm) and also when hydronic radiant heating systems are present. Issues such as dusting, cracking, de-bonding, and overly soft surfaces leave projects with significant problems, corrective costs and delays and are mostly caused by poor planning, over watering, improper mixing and questionable site conditions. Refer to NFCA Floor Covering Reference Manual Specification Guide - Section AA2 - 03-54-12 – Gypsum Cement Underlayment.
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