Sounds like youre in a similar set up to me. I had 600s in the loft and even on a clear skies, 22c day like today, temps always exceeded 30, regularly over 35 by late afternoon, really evening. The price we way for having large black heatsinks on our rooves, old slate gets so hot in the sun.
I'd suggest a parabolic reflector with vertical bulb, a sunking model, as they have louvres at the bulb holder where you can attach some ducting from your extraction. That's been my solution for the past year, but I've moved to led now.
When you do things right, people wont be sure you've done anything at all.
Bookmarks