energy nerd

摘要

When drawing up plans for net-zero homes, some builders refer back to an old paper from the Building Science Corporation for pointers on insulation thickness.Titled "High R-Value Enclosures for High Performance Residential Buildings in All Climate Zones," the paper has an oft-reproduced table with R-value recommendations for all climate zones in North America. These recommendations exceed requirements established by building codes, and they're considered to be the R-value bible by some energy-smart builders.