Timely provision of an acceptable surface to the floor covering installer is necessary to avoid delays and ensure quality
The timely provision of an acceptable surface to the floor covering installer is necessary to avoid delays and ensure quality. The Floor Covering Reference/Specification Manual of Canada states 'The General Contractor shall provide substrate surface level and flatness conditions acceptable for floor covering materials (straightedge measure of 3/16" over 10'). This shall include grinding or sanding of ridges, undulations, projections, and areas of carbonation and scaling and filling and leveling of expansion joints, cracks, grooves and other irregularities. Where patching or leveling is required, the use of an approved Hydraulic Cement Underlayment is recommended'. For existing slabs the same applies including the removal of any and all surface contaminants including old adhesives. The flooring contractor may take on this work as a billable extra. www.floorcoveringreferencemanual.com
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