Cob Home Exteriors

Categories: Building Methods

Cob Home Exteriors
  Dwellings in Jericho, which were built in 9000 BC of mud brick, still stand today as testament to the longevity of earthen homes. Cob has also been popular in the UK and Ireland as their soils have a high clay content. Thousands of old cob dwellings are still in use as residences in the UK.

Combine two buckets of clay, three buckets of coarse sand (if your subsoil already has the correct proportions of clay, silt and sand better yet), add some water and straw, stomp on that with bare feet for a bit, form into lumps (cobs) for ease of transport, then start building.

If your subsoil is appropriate, your cob building could be the utmost in sustainable, if you build with local stone and use no machines, there would be no transport of building materials and no fuel use. Plus your home will most certainly not pollute the environment as it will simply return to the soil from which it sprung (many years down the line). You can also reuse cob again and again, take down a wall and then reuse the same cob to build a new wall.

When building in cob it is very important to remember that a home's boots (foundation) and hat (roof) are extremely important, as cob should not be exposed to excessive water.


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