Cob (material)

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Cob, cobb or clom (in Wales) may be a natural artifact made up of subsoil, water, fibrous organic material (typically straw), and sometimes lime. The contents of subsoil naturally vary, and if it doesn't contain the proper mixture it may be modified with sand or clay. Cob is fireproof, immune to seismic activity, and uses low-cost materials, although it's very labour intensive. It may be wont to create artistic and sculptural forms, and its use has been revived in recent years by the natural building and sustainability movements.

In technical building and engineering documents, like the Uniform codification of the western USA, cob could also be named as an "unburned clay masonry" when employed in a structural context. it should even be brought up as an "aggregate" in non-structural contexts, like a "clay and sand aggregate" or more simply an "organic aggregate," like where the cob could be a filler between post and beam construction.

Benefits of building with cob:

• Sustainable – the foremost sustainable kind of building there's – cob has almost zero embodied energy. Since its made from earth, it his also entirely recyclable and non-polluting.

• Affordable – as long as you've got land to make on, anyone can afford to create cob walls.

• Breathable – its a healthy place to measure, as there's no damp during a cob house.

• Requires almost no heating – if you design your cob house on passive solar principles, you'll be able to get around its poor insulation properties. To do this, you ought to use cob on south facing walls, making the foremost of its thermal mass. Then, us e straw bales on the north facing walls to supply great insulation.

• Aesthetics – with cob, you'll practically sculpt it, meaning that you just can create curves and even carve shelves into the walls.

• No chemicals or additives

• Sustainable load bearing

• Long life spain

• Recyclable

• Biodegradable

• Doesn’t burn

• Insects won't eat cob






The preliminary disadvantage of a cob home is that its labor intensive. the majority get discouraged from building a cob house solely due to the time and labor it requires. Another con of a cob home is that it cannot endure wetness.

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