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Question on Air Gaps under wood Flooring

co56
co56 Member Posts: 1
I have a radiant heat floor system poured into 1 1\/2" of concrete. We have wood sleepers installed every 12" for a 3/4" hickory wood floor to be installed over the top of the concrete. The wood floor will nail into the sleepers. When the concrete was poured it is higher than the sleepers in some areas. We tried to grid it down but with no success. We have installed 1/8" masonite strips on the sleepers to create a level wood floor. The wood floor will now not come in contact with the concrete and we have created this 1/8" air gap. Is this wrong? How will this effect efficeincy and overall performance? The air gap will act as an insulator but I do not understand how much impact this will have.

My client is concerned regarding performance and additional cost to run the system.

Do you any other thoughts on different solutions.?

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