Second story hydronic radiant floor system
We notice that the hydronic system for the 2nd story tends to warm the ceiling of the 1st floor rooms below rather than the floors as was intended. Our second story was built with hydronic loops between the floor trusses on the underside of the subfloor using thin metal (not aluminum) heat transfer plates. Laminate flooring and some tile in the bathroom cover the floors. I read and others suggested to blow insulation between the floors and insulate the ceiling cavity to force the heat upwards. Without tearing out the ceiling, how effective will a vermiculite or cellulose insulation be to force the heat up through the subfloor and what product(s) could you suggest? Has anyone had any first-hand experience and can share the results?
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