Exterior Repairs

As part of the renovation process, quite often the exterior render has to be replaced. This can be due to it reaching the end of its useful life or being the wrong material. Old laths as a substrate will over time disintegrate with wood worm and water egress and the render then becomes unattached and will crack and eventually fall off the building.

Concrete renders on meatal mesh that do not breath coupled with the use of plastic membranes were used extensively for rendering on older properties post war and although they have kept a lot of buildings structurally together it leads to the rotting of the timber frame through trapped moisture which encourages insect attack and fungal rot .

We can strip your old render , deal with any repairs we encounter and then lath in Larch ,Chestnut , Oak or whatever wood the customer/architect and conservation officer specifies. Additionally we also apply OSB boarding to strengthen the frame and Breathable membranes to add layers of protection .

An alternative to traditional laths is solid render carrier boards such as those manufactured by  “Savolit”, which have acoustic and thermal properties and are made from wood wool fibres .

These can be fitted directly externally as a substrate for lime render or internally as a base for plasters .