Technically it’s not that much of an issue because it’s kind of double layered. As in - there’s one at the top/roof level, then a big space, then a second one at indoor ceiling height. The space is surrounded by plaster, etc
The gap is just in the 2nd indoor/ceiling height one. I’m not 100% sure how the flies are getting in, but there must be a hole or something in that space that’s letting them in from wherever they’re spawning from in the roof
If flies are coming in through that skylight, it’s pretty silly of them to deem it a non issue. Sorry you have to put with this.
Technically it’s not that much of an issue because it’s kind of double layered. As in - there’s one at the top/roof level, then a big space, then a second one at indoor ceiling height. The space is surrounded by plaster, etc
The gap is just in the 2nd indoor/ceiling height one. I’m not 100% sure how the flies are getting in, but there must be a hole or something in that space that’s letting them in from wherever they’re spawning from in the roof