Dear colleagues,

We are currently assembling a material library as a basis for energy simulations and the question came up which source we should use to describe the various thermal and optical properties of typical construction materials? A natural answer seems to be to use the ASHRAE Handbook of Fundamentals 2009 Chapter 26 which lists such numbers. Are these the tables that "all" of you are using or am I missing an important resource? What about our Canadian, European and other international friends? Would you scorn at an ASHRAE library and rather use your own numbers? This data input is obviously tedious so we want to avoid having to do repeatedly.

All the best,

Christoph