Radiant Floors have New Insulation Requirements Under IECC
Originally published by: International Code Council — January 28, 2014
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There is a new requirement for all radiant floor slabs in the 2012 IECC. The bottom floor slab must be insulated to an R-3.5 minimum corresponding to Table C403.2.8, Minimum Pipe Insulation, up to 1 ½ inches (105°F to 140°F).
Click here to continue for the full 2012 IECC Significant Changes analysis document.