Anne-Jifke does not yet see a ready-made solution if you have multiple bats in your house and you still want to insulate: “We should at least talk to each other. Contact us and we will look into “This is a good solution in your case. There is also money available, because the Netherlands is simply obliged to maintain the population of lake bats at the level of 2006, European agreements have been made about that. But that is not going well at all now.”