Installation Guide

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Problem:
Adhesive becoming “wet” or “gummy” some time after installation;
Causes:
• Moisture present in subfloor
• Old cutback adhesive from prior installations or contaminants breaking down the adhesive.
Problem:
Gaps between tiles which are corresponding with underlayment joints.
Causes:
• Shrinkage or separation of the underlayment panels
Problem:
Tiles coming loose with adhesive dry and powdering:
Causes:
• High alkalinity in subfloor. This will usually take place within 3 to 6 weeks after installation.
Problem:
Bumpy, dimpled or wavy surface of product:
Causes:
• Irregularities in the subfloor or underlayment telegraphing through the product. Often occurs with
unapproved underlayment such as waferboard, OSB, particle board etc. Poorly prepared concrete
subfloors will also cause this.
• All installations adhered will conform to any subfloor irregularities.
Problem:
Self leveling underlayment:
Causes:
• Separating from itself (still stuck to tile and substrate). Poor quality product or bad mix of a good product
or moisture problems.
• Separating from subfloor (still stuck to tile). Improper preparation of substrate surface, or moisture
problems.
• Separating from tile (adhesive stuck to underlayment). Adhesive was allowed to dry.
• Denting from heels, rollers, chairs, etc. Density of underlayment too low, too little resistance to point
loading.