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This paper documents the experimental methodology, details, and results and discusses how this information can be applied to modeling drained wall systems. Practical applications and research… Read More

Exposure to sunlight (ultraviolet radiation) and moisture are the major factors affecting the durability of paint coatings and the durability of the substrate. Ultraviolet radiation, moisture and… Read More

This article was written to tie together and summarize the various papers on unvented conditioned cathedralized attics found on our website. We realize that there is a wealth of information, and much… Read More

The Thermal Metric (TM) project was initiated in 2007 to support good design and construction practices by improving the way thermal performance is measured. Ultimately, the project goal is to… Read More

This article is the fourth in a series on various building diagnostic tools and techniques to sleuth out problems in buildings.

Gravity is the driving force behind drainage. The “down” direction harnesses the force of gravity and the “out” direction gets the water away from the building enclosure assemblies, openings,… Read More

This summarizes an uninsulated basement even though the code requirements in DOE climate zones 4 and higher do not allow an uninsulated basement in new construction where the basement is conditioned… Read More

This is another alternative to the minimum code required basement insulation in DOE climate zones 4 and higher. This construction uses a 2x4 framed wall against the concrete foundation with R-13… Read More

This construction uses continuous R-10 or R-13 batt insulation on the interior of the concrete foundation wall. The slab is left uninsulated and the rim joist is insulated with batt insulation. … Read More

The figure below shows 2" XPS or foil-faced polyisocyanurate rigid insulation and 6" open cell low density spray foam insulation installed on the interior of the rimjoist and foundation wall, and 2"… Read More