I see this constantly in certain European counties, and mostly in villages, but still, why? Is it ascetic, or is there an actual purpose for these type of roofs?
In: Technology
All materials have this property called thermal delay. And earth has a quite long thermal delay (depending on the thickness it can be up to 12 hours). Besides, earth has thermal resistance, thermal transmittance and thermal capacity that makes it a great insulator for pretty much any climate. On cold climates, it will warm up during the day and slowly deliver that heat (thermal delay) during the night. On warm climates, it will make sure that all that heat doesn’t go through the roof during the day, which would warm up the environment significantly (think fibercement roofing).
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