My neighbor has an energy efficient low e window. They have had it for about 10 years, but over time it has slowly been causing damage (melting) our vinyl siding. This article details the way the damage occurs. Pictured below is an example of said damage which is very similar to mine.
My neighbor is unwilling to talk about it, despite multiple attempts to speak with them. I have tried to explain the situation to them, and have offered to cover 100% of the expenses to simply add a full screen (currently there is a half screen, but I believe adding a full screen would help alleviate the issue), but they refuse to speak to me about it, and deny that their window does any kind of damage. I'm not seeking monetary damages necessarily, I simply want to stop further damage from occurring.
What legal recourse do I have? This is in the state of Maryland.