Clay or Earthbased Plasters

Earth-based plasters are made with soils that have a naturally occurring balance of sand and clay. For centuries, such plasters have protected buildings from the elements, and they are an entirely feasible and practical option in a modern context.

The biggest strike against earth plasters is simply a cultural prejudice against using something so old-fashioned and unscientific as mud on something important like a house. But hundreds of bale structures have been plastered with earth, and the results are quite remarkable.

The only weakness of earth plasters is their susceptibility to erosion under repeated exposure to rain, which is typically addressed either by generous roof overhangs or a protective coating.

But there are so many positive aspects to using earthen plaster that it is certainly worth considering. Its sheer simplicity, beauty, ease of application, and environmental friendliness are all compelling reasons to choose an earthen plaster.


We know that earth is a durable substance; it has been around for a long while! Historically, earth-based plasters were repaired or resurfaced on a regular basis — a maintenance schedule that may not suit current builders or homeowners. However, modern buildings have better roofs that, if made to overhang generously, largely eliminate this concern. Natural stabilizers (like flour paste, linseed oil, blood, and dung) can also

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