Ecowarm shall be installed over a wooden subfloor, complying with “General Ecowarm Installation Requirements For All Flooring Over Wood Subfloor”. In addition, the following specific precautions and instructions shall be followed: When installing masonry, tile and stone, backer board shall be used over Ecowarm. Thin set and screw backerboard to the Ecowarm with thinsets compatible with PEX Pipe. Thin set installation on top of backerboard shall then be used following TCA Guidelines. In the kitchen, baths, laundry or any other area where water may be present, water sealant layer (i.e. Nobleseal) shall be used. Where tile or stone is going to be thin-set, anti-fracture membrane (Nobleseal) or equivalent shall be installed over the backerboard. Maintain 2” minimum tubing clearance when screwing backer board down. Refer to the complete installation manual for further instructions on the installation of the Ecowarm system. See also Notes and Cautions below:
Thinset Tile or Stone for areas unlikely to be subject to moisture
Thinset Tile or Stone for areas likely to be subject to moisture
Do not omit the backerboard layer. Do not thinset directly to Ecowarm, the aluminum will not provide a good bond. Do not install crack isolation membranes directly to Ecowarm, they will not get a good bond and many of them use materials that are incompatible for contact with Pex pipe.
Notes On Sealing
The aluminum layer on the top of each Ecowarm is highly water resistant. Thus a significant degree of moisture protection can be given to the board simply by using silicon sealant as a caulk between the boards. Properly applied, this will profoundly reduce the likelihood of water transmission into the boards. This is not a substitute for recommended installation methods in wet areas.