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This overview summarizes double stud wall construction including the advantages and disadvantages of this construction strategy. Complex two dimensional heat flow analysis and one dimensional… Read More

This overview summarizes 2x6 advanced frame wall construction using mineral fiber insulation board including the advantages and disadvantages of this construction strategy. Complex two dimensional… Read More

This overview summarizes 2x6 advanced frame wall construction including the advantages and disadvantages of this construction strategy. Complex two dimensional heat flow analysis and one dimensional… Read More

This two-story enclosure with a basement is designed for Denver, CO (Cold Climate). It features a vented attic with a raised heel truss and cavity insulation at the attic floor, and asphalt shingles… Read More

The owners of this single family home initially set out to remodel the basement into conditioned space and upgrade the heating and water heating systems. Working with a builder oriented toward high… Read More

Primarily as a resort location, Hilton Head Island has a somewhat different residential housing market than other more traditional areas. The market is made up of both year-round occupancy and… Read More

It shouldn't be a surprise that energy would be a hit in Texas—but 8,000 people on the first weekend to tour a home that uses less than half that of a standard new home, and makes the rest itself?… Read More

In June of 2009, National Grid launched a pilot program intended to demonstrate Deep Energy Retrofits (DER) in existing Massachusetts homes. The pilot program provides financial incentives and… Read More

Hygro-thermal regions, rain exposure zones and interior climate classes are defined as environmental loads to be used in applying limit states design to durability, building envelope and mechanical… Read More

Unvented roof assemblies can bring attic mechanical systems into conditioned space, negating ductwork losses. However, in previous work, unvented roofs with air-permeable (fibrous) insulation,… Read More