A good hat and a strong pair of boots: a guide to caring for your cob property
C 56 Listed Heritage Magazine September/October 2018
ob is a natural building material made from the earth. In its simplest form it is an appropriately
balanced subsoil blend containing a mixture of clay, silt and sands, often with the addition of straw and other fibres. Historically, this mix was trampled on by cattle on the local land which naturally resulted in the addition of dung and other impurities to the mix.
It was thought for a long time that this addition helped to plasticise and bind the mix (although there is little evidence to back this theory as most modern cob is produced successfully without the use of animals and their associated droppings!).
Cob properties have been around for many centuries in the UK, with the oldest examples thought to date way back to the 11th century. There was even a time when cob was the most common building material in many regions – particularly Devon and the surrounding counties of south-west England (there are an estimated 40,000 cob buildings still standing in Devon alone).
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