Hi. We are having a new GRP roof fitted and would like to install two dome roof lights at the same time. I'm thinking something like this. The roofer is happy to install them but we have to source them and there seem to be loads of online companies so I don't really know where to start. Not sure whether to get double or triple glazed, opening or non-opening. They are for a largeish kitchen extension and we really only need them for extra light at one end of the kitchen as there is a fairly large window and a door at the other end. Has anyone got any tips or recommendations? TIA.