Recent Articles
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This Radiative Cooling Material Could Supplant Traditional Air Conditioners
A new study shows a breakthrough in the cooling effect of a material that’s easy to manufacture
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Buried Ducts Allowed in 2018 Energy Code
The keys are duct leakage, R-values, and the vapor barrier
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Should Balanced Ventilation Be Required?
Aspen’s new energy code requires balanced mechanical ventilation with recovery
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City of Aspen Dumps Energy Rating Index
Aspen’s new energy code adopts the “perfect energy code” as the only performance path
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Designing Duct System Vents for Good Air Flow
Finding the right balance of quantity, mixing, and noise
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The Fundamentals of Rigid Duct Design
Observe these principles of fluid flow to deliver the right amount of air
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The Uniform Mechanical Code Looks to Limit Flex Duct
A current proposal recommends limiting length to 5 feet and requiring rigid elbows
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Can This Panelized System Solve Your Enclosure Problems?
The Build Smart system makes it easy to control heat, air, and water
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Using David White’s Global Warming Calculator
The second part of my Passive House conference presentation
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Revisiting the Debate Over Global Warming and Insulation
Here’s what I presented at the North American Passive House Conference
