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An Environmental Case for Lime


Most people know that lime is a traditional material that has been used for many years and is more widely being specified by conservationists and architects. This is because it is now widely recognised that hard cement mortars and gypsum plasters are not appropriate for a traditional constructed building and that modern materials can in fact cause serious damage to the fabric of such a building. Some insurance companies have recently been known to reduce the sums claimed by householders where the damage compounded by the use of inappropriate materials.

It is not just traditional building repairs that benefit from the use of lime. New build and our environment can benefit. Traditional lime plasters are more porous and can absorb moisture from the air. When used with a breathable paint this can reduce the possibility of condensation in the home. This increases porosity also offers an improvement in acoustic insulation. Many millions of bricks are fired annually using a huge amount of energy.  The vast majority of these bricks will be laid with cement mortars and are destined never to be recycled apart from the use of hard core.

The energy used in the production of lime is also less than that for cement. Lime also sets by carbonation, reabsorbing most of the carbon dioxide releasing from the limestone as it is burnt. With greater moral and legal emphasis being placed on more environmentally friendly options in every aspect of life, lime could be a major contribution to reducing the adverse effects of our throw away, carbon producing society.
 
 

Information


For further information on this natural product that we use, refer to www.mikewye.co.uk our main supplier. 

Restoration work on Lime


Lime putty mortar offers advantages over cement based mortars. They are generally a softer, more porous material allowing moisture to evaporate from the joints in preference to the stone. This will help to lower moisture levels in the wall and reduce the build up of soluble salts in the stone face. As with all lime putty based materials the best outcome requires patience and careful control of drying and suction, the reward being a good looking and long lasting mortar.

limemortar