Report on stone marten damage to buildings: targeted prevention is needed
The stone marten is now widespread in Flanders and regularly causes damage to homes. Attics and roofs are particularly vulnerable: stone martens use them as hiding places and nesting sites. As a result, they can damage insulation, wiring and roof structures, or cause odour and noise nuisance.
New INBO research shows that reports of damage to homes peak mainly in winter and spring. Many cases occur in (sub)urban areas where buildings, greenery and open space are closely intertwined. Peripheral zones between residential areas and urban green spaces in the suburbs are particularly vulnerable, as human infrastructure and suitable habitat for stone martens coincide there.
Building characteristics also play an important role. Homes with cavities between the roof and interior finishes, and with climbing opportunities along façades, such as climbing plants or overhanging trees, are more likely to suffer damage. Higher façades reduce this risk, as do certain types of insulation: glass wool appears to be more attractive to stone martens than hard insulation boards.
Nevertheless, prevention usually only takes place after damage has occurred, whilst structural measures such as preventing access to roofs are considered effective by experts. Deterrents, such as ultrasonic sound, can also be effective, provided they are used correctly. A proactive approach involving marten-proof construction solutions and targeted awareness-raising regarding preventive measures in high-risk situations is therefore essential.
Michiel Lathouwers, Anneleen Rutten
Image above: stone marten (photo Rollin Verlinde - Vildaphoto)