Recent Articles
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Short-Term Indoor Air Quality Monitoring
Does a 1-hour-window look at a building's indoor air quality metrics yield useful information?
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Department of Energy to Own RED Calc
Popular with energy auditors, the Residential Energy Dynamics Calculator is moving to the Building America Solution Center website
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Building Code Meets Building Science
Five ways residential building codes have begun to align with building science–directed best practices
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Building Science Trivia Time
IBS 2024 inspires a homegrown game designed for GBA readers
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Making Home Energy Upgrades
Guidance for choosing building assemblies and products that will reduce heating/cooling loads and operational costs
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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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IRC 2021 and the Ratio Rule for Hybrid Roof Insulation
Correcting an outdated table of energy code–mandated R-values
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Installing an Interior Air Barrier
Interior-only air-sealing strategies can work with the right products and techniques
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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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Getting the Most Out of Blower Door Test Results
Understanding blower door calculations beyond air exchanges per hour at 50 Pascals can yield useful information for achieving efficiency goals