Can't say I've ever heard them doing it when they cool down, but when the sun hits them in the morning, it can happen. If they're mounted to an aluminum facia, that can also transfer noise when expand ... read more
We have a client that recently dealt with a similar situation, but it was a racoon. They installed a one-way door, made from galvanized mesh, over the hole. Once the varment was out, the clean-up and ... read more