Radiant heating- snow melting??

hedgehoggyDecember 31, 2013

First winter in our new home. We have radiant in floor heating throughout the home and are in an area with lots of snow. We are noticing that the snow is melting around the perimeter of the house about 1' out. Can anyone tell me if this is normal for a home with radiant heating?

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jackfre

Normal, don't know. Desirable...no. What it shows is that you have a thermal bridge to the outside. Your slab edge insulation should prevent that. Heat goes to cold and you are heating the outdoors. At this point you should look to see if there is any slab edge insulation.

    Bookmark   December 31, 2013 at 7:50PM
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mic111

Nope not normal. We have radiant in-floor heat. Never seen any melting outside. Maybe your gutters aren't working right and snow is melting off the roof and melting the snow on the ground?

    Bookmark   December 31, 2013 at 10:38PM
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energy_rater_la

my understanding is that there is a common fix for this.
excavate around slab to footings, attach foam
sheathing boards to slab, cover with hard surface, like
cement board.

this will eliminate the thermal bypass.

does the snow melt quickly off the roof?
this would be an indication of air leakage
from inside the house leaking into the attic
and/or lack of proper insulation install.

interesting issue. please let us know
what you determine the issue to be &
what your fix will be.

best of luck.

    Bookmark   January 1, 2014 at 3:17PM
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