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We want to install radiant heating. How do we insulate the concrete slab floor?

by LiveModern Webmaster last modified Apr 04, 2012 01:01 AM
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by last modified Apr 03, 2012

Our floors are concrete with no insulation--just slab. We want to install radiant heat to run off our PV system, and have a finish layer poured over. We've read about the energy loss if the slab is not insulated. What kind of insulating layer could be installed over the old concrete that wouldn't cause a problem with the new overlayed layer bonding correctly?




 

 

Our floors are concrete with no insulation--just slab. We want to install radiant heat to run off our PV system, and have a finish layer poured over. We've read about the energy loss if the slab is not insulated. What kind of insulating layer could be installed over the old concrete that wouldn't cause a problem with the new overlayed layer bonding correctly?

Cathleen,

For a properly installed system, the insulation should be between the ground and slab eliminating any heat transfer to the colder soil directing the heat upward.

Bonding of the upper finish...



 

 

 
 
 

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