What do people use for insulating a retrofit from the canopy?

[John Hartford]

I don't know if I am being to cautious or not, but I heard that for a metal halide retrofit that would be attatched to a wood canopy is that there should be some type of insulation between the retrofit light and the wood canopy to prevent a possible fire. Is this true, and if so what types of insulation do you recommend.

 

[nebraskareef]

I've never had anything besides an additional piece of wood to create an air gap between the reflector and the hood. I suppose if you were really worried about it, a shallow socket could be used for additional space.

 

[agfahy]

With all the retros I've installed, I've always used a couple of wooden stand offs to space the retro away from the wood cap a little. !.5" is sufficient. It also allows you to hide cords behind the retro for a cleaner look.
Good luck.