Rigid Foam
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Low-Slope Roof and Ice Dams
Can eave-to-ridge roof venting, vigilant air-sealing, and robust thermal control prevent ice dams in high-snow country?
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Details for a “High-Performance Garage”
An insulated slab, Larsen truss wall system, careful air-sealing, and dense-packed insulation in deep cavities mitigate heat losses at a garage door
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Problems with Attic Trusses
If you are designing with attic trusses to create conditioned living space, be warned it is difficult to detail this assembly, making it susceptible to heat loss and air leakage
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Design for Low-Carbon Building
Details from a Pretty Good House provide a roadmap to lowering a building’s carbon emissions
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IRC 2021 and the Ratio Rule for Hybrid Roof Insulation
Correcting an outdated table of energy code–mandated R-values
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Adding Exterior Insulation to Existing Homes
Firsthand experience informs this basic plan for installing rigid insulation on the outside of an older building
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Continuous Insulation, Part 2
An overview of the products most commonly used for exterior insulation and considerations for detailing this type of wall assembly
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Continuous Insulation, Part 1
A look at the 2021 IRC prescriptive path to continuous insulation and its benefits
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Insulating a Walkout Basement
Is it better to insulate the walls or the ceiling in a partially finished basement?
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How to Talk to Contractors About Exterior Insulation
Information and resources to share with general contractors to convey the value of "outsulation"