gramma mo,
Had checked about tubular skylight, when we had some roof work done. They couldn't promise it would not leak, because of the type of metal roof we have. I am ok with that, because we had what they called " condensation leaks" , there was no vapor barer between original board roof & metal roof, so it would drip & leak. We were able to reuse the metal, it was still in good shape.
Well, break time is over, back to muddin :-D
Later all !! :-D