Natural stone facades can absolutely meet today’s stringent building energy codes—when designed and installed as part of a properly engineered wall assembly. The key is understanding that energy efficiency doesn’t depend on the stone itself, but rather on the insulation, air barriers, and moisture management layers working behind it.
Building energy codes like the International Energy Conservation Code (IECC) and ASHRAE 90.1 establish minimum thermal performance standards for exterior walls, typically requiring R-values between R-13 and R-25 depending on climate zone. Stone cladding functions as the aesthetic and …
