Metal definitely tends to sweat a bit more in my experience—kind of like that cold soda can on a hot day. PVC pipes seem to handle temperature swings ...

Haha, silicone...been there, done that. Last summer I thought I'd save a few bucks and went with regular screws and silicone sealant. Fast forward to ...

Haha, your roof's probably screaming "please don't overload me!" I helped out with a retrofit last summer, and man, you're spot on about the weight is...