la protection du bois depuis plus de 35 ans


Termites appeared on Earth several millions millions year ago. They contribute to ecological balance of our forests. However, their action may cause severe damages to home-owners in our towns : in the USA, it is estimated that termites cause more than $5 billion in property damage each year.

Subterranean termites (termites) are social insects that live in a colony like bees and ants. Typically they form a nest in the soil or near ground level in a stump or trunk of a tree. They eat cellulose which is found in timber products such as paper. Attack by termites originates from the nest. Foraging termites will seek cellulose up to 50 m or more from their nest. Wood or timber lying or buried is reached by underground tunnels built by the termite workers. Timber above ground may be reached inside the timber or via mud-walled tubes plastered to exposed surfaces. These tubes are built by the termites to shelter them from the light and maintain humidity. As well as eating timber, termites can damage non-cellulose materials such as soft concrete, soft metal and plastic, building sealants and foam insulation.

Cracks in concrete and the gap around pipes penetrating through the concrete slab offer easy to termites. Koatmaille is installed where termites may attempt to gain access to the timber in a building. The inox metal of Koatmaille is highly resistant to termite, and the mesh size block any crossing of the barrier. Where Koatmaille is installed the termites will seek cellulose elsewhere or seek to go around of Koatmaille. When seeking to go around the Koatmaille, the termites will build their mud tubes which will be detected during an inspection by a suitably qualified inspector. Steps can then be taken to eliminate the termite colony before significant damage can be done. When termites get concealed access, such as when Koatmaille is not installed, access is gained for a long period resulting in significant and expensive damage.