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Old 11-18-2009, 09:59 PM   #1
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Cork as underlayment for Tiles


Hello everyone,
I am new is in this forum...
We are in the process of replacing the flooring of our house. We are on a concrete slab and would love to have tiles. However, our friends made the experience that tiles are getting pretty chilly in the winter time, even in South Virginia. We were looking into floor heating, but it is a bit too pricy for us.

Now I came across "cork" as a underlayment for tiles as not only help with sound, but also as thermal insulation.

Does anyone have experience with cork as underlayment for tiles on a concrete slab?

Thanks in advance for your help!
Andrea

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Old 11-19-2009, 05:57 AM   #2
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Cork as underlayment for Tiles


Tile requires a very rigid subfloor. Cork has give to it so it is not good for tile underlayment. There are electric mats that you can install under tile of cold is your reason, then install the tile right over that on the cement floor.

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Old 11-19-2009, 08:17 AM   #3
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Cork as underlayment for Tiles


Ups, I just read my posting last night.. I guess I was a bit tired - glad it made sense anyways

Thanks for the info, Bill.
We looked into those mats as well, but they have to be installed by an electrician - and (1) we seem not to find anyone willing to do it... Sounds funny, but it's a fact.
And (2) - beside that - we calculated the yearly costs and it would be too expansive to run it all winter...

Is there something else, we can use for insulation underneath the tiles? It can't be too high (thick), since our ceilings are very low already...
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Old 11-19-2009, 11:45 PM   #4
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Cork as underlayment for Tiles


3/8" hardi
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Old 11-20-2009, 05:55 AM   #5
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Cork as underlayment for Tiles


The mats do not need to be installed by an electrician. Actually, I wouldn't allow an electrician to install the mat itself. You need an electrician just to make the connections at the thermostat and the circuit back to the breaker box. Electricians do come at a premium though. I've gotten quotes to do these connections ranging from $200 to $800.
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Old 11-22-2009, 12:59 PM   #6
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Cork as underlayment for Tiles


And the cost is not all that much to operate. You only need to use the heat when you expect to be using the tub or shower. Unless you are in there the whole winter?

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