Distance from rubber roof to conduit

[JJWalecka]

Is there a minimum distance a raceway feeding HVAC equipment must be above a rubber roof

I have always used sleepers but recently saw uni strut mounted directly to the rubber roof to support the raceway. Which would only give 1 5/8 space

Thanks for your time

 

[rc/retired]

I don't see a minimum or maximum height anywhere in the code.

Ron

 

[Rick 0920]

There is a temperature adder for raceways above the roof for ampacity of conductors above roofs. Below 7/8" you would add 60 degrees F. to your ambient. I agree with RC, there is no min./max. noted anywhere.