Wildland/Urban Interface 4 : The line, area, or zone where structures and other human development meet or intermingle with undeveloped wildland or vegetative fuels
NFPA 259 Standard Test Method for Potential Heat of Building Materials 1998 ed. http://www.nfpa.org/assets/files/AboutTheCodes/259 /259-F2002-rop.pdf, (Std: Tst Meth for Potential Heat of Build Mtrl - Amer) {275 NFC}