08 May '13, 5am

Should I insulate around the edges of a basement slab if it has in-floor radiant? #green

I'm building a house in zone 6a. Local codes require 2" of rigid foam on the outside of the foundation wall, so that's what we did. We plan to insulate under the basement slab (1.5 or 2 inches of rigid). We also plan to install radiant heat in the basement slab. Should I insulate around the edges of the basement slab to prevent continuous thermal bridging and heat loss from the heated slab into the foundation wall and eventually down to the footing and into the ground?

Full article: http://www.greenbuildingadvisor.com/community/forum/energ...

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