Prior to installation of flooring over radiant heat system it is important that the guidelines are followed in strict accordance. Failure to follow the guidelines may produce unsatisfactory results.

Floating installation methods only, direct glue down is NOT RECOMMENDED.

Sub floor must be flat to 3/16" in 10’ or 1/8" in 6’

Prior to installation moisture testing must be conducted and documented per ASTM test method 1869-89 for concrete or using a pin type meter for wood sub floors.

The moisture content for concrete sub floors registered after a calcium chloride test must not be greater than 2 pounds per 1000 square feet of area. If it exceeds these limits, DO NOT install the flooring.

Relative humidity of the jobsite must be maintained between 35-55% relative humidity. Use of humidification system may be required to maintain the proper humidity level. Failure to maintain proper humidity level can result in excessive dryness of flooring.

It is highly recommended that the radiant heat system be designed specifically to accept a wood floor

Use of an in floor temperature sensor as well as a separate thermostat for the individual room is required.
An outdoor temperature sensor should be used to adjust water temperature according to anticipated heat loss.

JOBSITE REQUIREMENTS

Prior to installation of flooring the radiant system must be installed per manufacturer’s instructions.

Before floating installation of flooring material the follow conditions are required.

Concrete must be allowed to properly cure and dry a minimum of 4 weeks prior to operation of radiant heat system.

Operation of radiant heat system should be set to run at 2/3 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.

Prior to installation (4 days) reduce to a temperature of 65°.

Install flooring according to floating floor installation guidelines. Use of a 2 in 1 underlayment is required.

When gluing planks run a continuous bead of adhesive in the groove on both the end and length of the board.

8. Remove any excess glue that squeezes out onto surface of the planks with a clean damp rag. Change rags and water periodically to avoid leaving a haze on surface.

AFTER INSTALLATION & SEASONAL OPERATION- 48 hours after completion of installation, slowly raise temperature of the heating system to its preferred operating level over a period of 5 days. Do not allow the surface temperature to exceed 82° Humidity level must be maintained between 35%-55% R.H. Seasonal gapping should be expected. Surface checking can be expected if the proper humidity level is not properly maintained between 35-55% R. H. or if the floor’s surface temperature exceeds 82°. Pre installation/ Job Preparation Inspect the Flooring – Inspect material for color, finish, milling.