[dylan_odonnell (Dylan)]

I have an opportunity to install a nice big skylight up to 1200mm x 1200mm wide. While it's not the perfect observatory fit-out it might be nice for casual solar/lunar and planetary obs form indoors with a nice open western aspect on a sloped roof.

All the skylights/roof-windows I've looked at are fixed or don't truly open up though. Does anyone know of a product that will keep the roof watertight but can be opened completely, manually or otherwise?

Thanks in advance!

d