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A Layered Approach to Indoor Air Quality
Tamping down the spread of Covid using the four pillars of good indoor air quality: source control, filtration, ventilation, and humidity control
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Testing Ducts for Air Leakage
Two ways to test ducts for airtightness in order to meet 2021 energy code requirements
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Common Causes for an Inefficient Duct System
Four easily identifiable problems that cause heating and cooling ducts to fail and DIY solutions for repairing them
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Roof Penetrations Prone to Water Damage
Holes located on the lower portion of a roof are at highest risk for moisture intrusion
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Heat Pumps for Cold Climates
Advances in air-source heat pump technology have led to equipment that is effective at low temperatures. Here’s a look at how they work and why they are a viable option.
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Will a Heat Pump Water Heater Freeze Your Basement?
Study demonstratesthe effects of heat pump water heaters on surrounding air temperature
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Measuring Natural Air Leakage
How to calculate ACHnat and reasons it can be a useful metric
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Why is There Frost in the Attic?
If you've ever seen frost in the attic in winter, it's pretty to easy to understand why it's happening. It's the same thing that causes morning dew on the grass,…
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Calculating Thermal Bridging in a Wood-Framed Building
An explanation of how to account for heat loss through lumber framing
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Continuous Air Barrier Between Garage and House
A method for controlling air movement between garage and house to ensure healthy indoor air quality in living spaces
