Installation Guide

5
June 11, 2020
Radiant Heat Installations
The following guidelines must be followed to maintain warranty coverage. Failure to follow ALL guidelines will
result in termination of warranty coverage.
Concrete must be allowed to properly cure and dry a minimum of 4 weeks prior to operation of radiant heat
system.
Over concrete, moisture vapor emission rate for concrete subfloors must not exceed 3 pounds per 1000 sf per
24 hours using Calcium Chloride test ASTM 1869, or 75% RH using ASTM 2170 k and must be documented for
warranty coverage.
Wood subfloors must not exceed 12% moisture content and be within 2% moisture content as that of the
wood flooring.
Subfloor must be flat to 3/16” over a 10’ radius or 1/8” over a 6’ radius.
T-moldings must be used to separate heating zones.
Operation of radiant heat system should be set to run at 2/3 of the maximum output for a minimum of 2
weeks prior to installation of flooring to further allow moisture from concrete to dissipate and reach a final
moisture content. This must be done in both heating AND non-heating seasons.
The use of a separate thermostat for each individual zone is required. An outdoor temperature sensor is highly
recommended to adjust temperature according to anticipated heat loss.
Reduce heat to a temperature of 65° 4 days prior to installation
For direct Glue down - Turn the heat off for 24 hours before, during and an additional 24 hours after
installation. Failure to turn heat off may reduce working time of the adhesive. Follow all adhesive guidelines
set forth by adhesive manufacturer
.
After 48 hours post-installation, we recommend to slowly raise the temperature of the heating system to its
preferred operating level. Please exercise caution and expect to achieve peak after a period of 5 days.
Do not allow the surface temperature to exceed 80°F with no more than a 5◦F variance in surface temperature
over a 24-hour period.
Relative humidity of the jobsite must be maintained between 35-55% relative humidity. The use of
a
humidification/dehumidification system may be required to maintain the proper humidity level. Failure to
maintain proper humidity level can result in excessive dryness of flooring and void the warranty.
Seasonal expansion and contraction is expected and does not mean a defect is present within the product.
GENERAL INSTALLATION TOOLS
Moisture Meter
Tape Measure
Pencil
Chalk Line
Hand Saw or Power Saw
Tapping Block
Crow Bar or Pry Bar
Wood or Plastic Spacers (½”)
Hammer or Rubber Mallet
FOR GLUE-DOWN INSTALLATION, YOU WILL ALSO NEED:
Premium Wood Flooring Adhesive
Adhesive trowel (as recommended by adhesive manufacturer)