Is temperature tolerance really that expensive?

[Anthony]

Originally Posted by vitruvian

Sure, but DR doesn't get mentioned in that post.

DR that's good against heat should protect just fine against any structural (non-metabolic) damage due to heat, and the amount of DR you need is well defined by the dice of damage dealt by the level of heat/fire involved.

Problem is that 'dice of damage' from heat/fire is only minimally correlated with temperature. Between swimming in boiling water, and walking through a bonfire, the boiling water will actually kill you much faster (higher 'damage'), but if I put a lump of tin in the boiling water nothing will happen to it, while if I put it in the bonfire it will melt.

The other problem is that DR in general is mostly about thickness, and thickness is utterly irrelevant to the maximum temperature a material can withstand -- it just determines how long it takes for the heat to get through.