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Is this 2012 code already enforced for TX ? – whole-house mechanical ventilation system

darlakay123 | Posted in Building Code Questions on

Is the requirement of “whole-house mechanical ventilation system” for Code 2012 already being enforced in TX ?
Is it mandatory in the state of TX now ?
If so, can you send me copy of that section for Code 2012 or which website to locate it please ?

Thank You,

Darla Kay

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Replies

  1. GBA Editor
    Martin Holladay | | #1

    Darla,
    You'll have to call up your local building department to verify which codes apply in your jurisdiction.

    If the 2012 IRC applies, the relevant sections of the code are:

    Chapter 3, section R303.4: "Mechanical ventilation. Where the air infiltration rate of a dwelling unit is less than 5 air changes per hour when tested with a blower door at a pressure of 0.2 inch w.c (50 Pa) in accordance with Section N1102.4.1.2, the dwelling unit shall be provided with whole-house mechanical ventilation in accordance with Section M1507.3."

    Chapter 15, section M1507.3. If you click on the link, you can read the provisions.

    For a summary of the most important energy requirements in the 2012 IRC, including requirements for a mechanical ventilation system, see An Overview of the 2012 Energy Code.

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