Hi there, We bought a 1978 tri-level in Seattle in April. It has 2 old school skylights, one above the stairs to the top floor and one in my son's room (also on the top floor). That skylight goes through the top attic whereas, I believe the one above the stairs goes straight into the roof. I know the one in my son's room leaks (we haven't observed it, but there is some water damage. Our home inspector said they needed to be sealed/properly framed out in our inspection report. I was wondering if anyone knew if it was possible to convert these to solar tubes. The issue is that the largest solar tube I have found online was 21. The skylights are 21 square, but for that I would need an approximately 28 circle. Is it possible to patch that spot on the roof and then do a circular opening of an appropriate size, or should I just try to reseal/update these uber-dated skylights?