coal shed, being used as larder.

The question here is to create an effective larder from a room that was not designed to keep food stuffs. The solution is to ensure that the room has temperature control by adequately insulating the walls, which may well be only single skin. This can be done either internally by batoning out the brickwork and installing a simple insulation system such as Celotex boarding or insulated quilting then perhaps plaster boarding and skimming to produce a barrier from outside temperature changes. Attention should also be given to ensuring a sealed door is installed into the room to make sure external moisture or temperature changes do not effect the moisture content inside. An alternative is to insulate the room from the outside. A number of excellent new products are available on the market to do this and all of them would achieve the temperature control required to eliminate the occurrence of mould and maintain an environment suitable for storing food stuffs. I trust this advice helps