Aluminum laminate is factory installed in the grooves of the Ecowarm RadiantBoard straight panel but the super combo panels including curves are made differently as follows:
The super combo boards with curves are first grooved for the tubing using a computerized router. The boards are laminated with the covering layer of aluminum then perforated down the middle of both straight and curved grooves. During installation, the tubing is walked into selected grooves splitting the aluminum which then compresses to the side of the tubing. This results in lower conductivity for ¼ the circumference of the tubing covering about 35% of the floor surface. The effect of this choice does not significantly impact efficiency in independent testing… that is what matters.
This also significantly lowers manufacturing costs of manufacturing Ecowarm RadiantBoard. The result: the best value in the market.