Thermoarcilla? Termoarcilla? Thermal Clay?
I’ve been working with a Spanish carpenter who told me that a lot of walls in Spain are being built with Thermal Clay, which I guess is the translation of Termoarcilla. I have had greast difficulty fining much information online in English (sorry my Spanish is not so good).
Here is some information: http://bloquetermoarcilla.es/en/productos-termoarcilla.php
The links on the pagef above provide some information. It seems that these blocks have good insulation, acoustic, and structural characteristics. Of course, thermal bridging looks like an issue, but I am wondering if these could be a part of a wall system with interior service cavity and exterior continuous rigid or rock wool insulation.
Does anyone have experience with Thermal Clay // Termoarcilla?
Thanks!
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E.T.,
In the U.S., this is called terra cotta block. It was a common building material here for many decades, but as far as I know is no longer manufactured in the U.S.
Concrete block is cheaper. Neither concrete block or terra cotta block is desirable from an energy perspective -- there isn't much R-value there. I suppose you could import them from Spain if you wanted, at great expense -- but why would you want to?