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Know the Code - Master the rules of home building


Know the Code

Learn how to build sturdy, safe, code-compliant homes with these insights from building inspector, consultant, and former residential contractor Glenn Mathewson. If a topic is covered in the International Residential Code (IRC), you’re bound to find a clear explanation of it here.

  • Fire Separation Distance

    Learn how the IRC addresses ways to prevent the spread of fire from one property to another.

  • A History of U.S. Building Codes

    Be it structural collapse, fire, or disease caused by water contamination or unsanitary waste disposal, the origin of building and health codes often can be traced to human tragedy.

  • Codes for Crawlspaces

    A variety of codes exist across the International Residential Code (IRC) that address crawlspaces differently from basements, but what actually distinguishes the two?

  • Code Requirements for Fireplace Clearances

    Avoid DIY disasters by following code-required clearances to combustibles, rules for hearth extensions, and trim-projection limits for elements above and beside the firebox opening.

  • Water-Vapor Control and the IRC

    The code gives a number of methods for managing water vapor to avoid condensation and rot in building assemblies.

  • Why You Should Pay Attention to Manufacturer Instructions

    When it comes to installation methods for generic building products, the code often defers authority to the manufacturer for guidance.

  • Code-Compliant Swimming Pool Barrier

    Swimming pool owners are responsible for ensuring a code-compliant barrier exists to prevent children from the potential fatality of entering unsupervised.

  • Changes Proposed for the 2024 IRC

    A rundown of popular topics and proposals under consideration for the next edition of the International Residential Code.

  • Methods of Alternative Construction

    In recent IRC editions, some more obscure materials, such as straw-bale and light straw-clay, and methods were added.

  • The Evolution of Top-Plate Building Codes

    Could a single top plate do the job, allowing for reduced thermal bridging and an increased R-value? Learn about top-plate building codes.

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