Questions about: vinyl-siding

Vinyl siding (along with steel) is fastened to your walls with nails that aren't fully set. This allows lateral movement when the siding expands and contracts due to temperature change. Ideally, the nails are set just snug enough to eliminate in-out
I need to install house numbers on my house. I have obtained an aluminium plaque with the numbers and I'm now wondering the best way to install it onto the house. The house has vinyl siding, and underneath the siding is ZIP system sheathing
I seriously doubt you could find the same material easily available. And even less, in a small amount. But I like the idea of epoxy
She had tried everything- a chimney cover, flashing, even rebuilt the entire top of the chimney. By the time I met her she’d spent thousands of dollars but nothing fixed it. This was an older house with an unlined brick chimney