Building Codes

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Tracing Air Leaks With a Blower Door

A pair of home-performance experts show how to use a fog machine to do a... More

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Conditioned And Unconditioned Unvented Attics

Joe Lstiburek says that the key to unvented attic and roof assemblies is to... More

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Continuous Insulation: Problems and Solutions

To avoid callbacks when making the move to exterior foam insulation, address water... More

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Ledger Strips and the Code

Why it's OK to use ledger strips to support joists inside a house, but not to... More

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Common Code Mistakes

Code expert Glenn Mathewson highlights the construction practices that are most... More

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Managing Solar Gain

In the north, the sun can offer free heat; in southern climates, the sun's heat is... More

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2021 Deck Code Highlights

Code expert Glenn Mathewson breaks down the deck-related changes included in the... More

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5 Cable Rail Secrets

This California contractor thrives through the pandemic with outdoor living projects. More

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Tracing Air Leaks Using Theatrical Fog

Watch home-performance consultants Jim Bradley and Chris West perform a... More

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Practical Air-Sealing

Here's how to reliably reach 3 ACH50, the energy code requirement for zones 3... More

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