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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

A circa 1917 construction mass masonry building located on a Boston-area university campus was retrofitted with interior polyurethane spray foam insulation. Sensors were installed in the retrofitted… Read More

There is a large existing stock of uninsulated mass masonry buildings: their uninsulated walls result in poor energy performance, which is commonly addressed with the retrofit of interior insulation… Read More

This paper is from the proceedings of the Thermal Performance of the Exterior Envelopes of Whole Buildings XI International Conference, December 5-9, 2010 in Clearwater, Florida. This paper… Read More

This paper describes a fully instrumented large-scale mock-up completed in a southern Ontario private school to allow direct comparisons between insulated and non-insulated walls with a focus on the… Read More

Adhered veneers, in which masonry units are directly attached to a substrate via mortar and ties without a drainage or ventilation gap, have become a very popular finish in residential and light… Read More

This paper examines methods of using hygrothermal models, primarily WUFI, to assess the impact of energy efficient enclosure upgrades on the durability of historical buildings. Means of producing and… Read More

One of the most iconic images that shaped my career in the early days was from Madelene Rousseau’s presentation at “”Building Science Insight: ’83”…Humidity, Condensation and Ventilation in Houses…… Read More

Snap, Crackle and Pop are beloved gnome characters…cartoon mascots of Rice Krispies breakfast cereal produced by a small company you might have heard of…Kellogg’s1.  Rice Krispies are one of the best… Read More

Yes, we have done unvented conditioned attics before….but mostly with spray foam and rigid foam insulations.  But we do not have to use spray foam and rigid foam insulations.  You can use almost… Read More