Building Science: The HAM Sandwich of Building Performance

April 27, 2015

Heat, air, and moisture are the first bits of building science knowledge any aspiring high performance builder should master, writes Sam Hagerman of Hammer & Hand.

“The components of HAM must be understood in two ways,” Hagerman writes “First, heat, air, and moisture should each be understood on its own terms…Secondly, heat, air, and moisture should be understood in juxtaposition with one another.”