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Building Envelope Air Tightness and Insulation Affidavit Table 402.4.2 of the Florida Building Code Energy Conservation INITIALS COMPONENT Air barrier and thermal barrier Ceiling/attic Walls Windows

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What is building envelope air tightness?

Building envelope air tightness refers to the extent to which outside air is prevented from infiltrating a building and indoor air is prevented from escaping. It measures the effectiveness of the building's envelope in maintaining a controlled indoor environment, including energy efficiency and occupant comfort.

Who is required to file building envelope air tightness?

The requirement to file building envelope air tightness depends on the jurisdiction and local building codes. In some cases, it may be mandatory for all new construction projects, while in others it may only apply to certain building types or sizes. It is important to consult the relevant building codes and regulations for specific requirements.

How to fill out building envelope air tightness?

Filling out building envelope air tightness typically involves conducting air tightness tests, such as blower door tests, to measure the air leakage of the building. The test results are then recorded and reported using the specified forms or templates provided by the local authorities. It is recommended to engage a qualified professional with expertise in building envelope air tightness to ensure accurate testing and reporting.

What is the purpose of building envelope air tightness?

The purpose of building envelope air tightness is to enhance energy efficiency, indoor air quality, and occupant comfort. A tight building envelope reduces air leakage, preventing drafts, moisture infiltration, and heat loss, which increases energy savings and reduces heating, ventilation, and air conditioning (HVAC) costs. It also helps maintain consistent indoor temperatures, improves air circulation, and reduces the entry of outdoor pollutants.

What information must be reported on building envelope air tightness?

The information that must be reported on building envelope air tightness typically includes the test results of air tightness measurements, such as the air leakage rate, the area of the building envelope, and relevant parameters from the blower door test. Additionally, it may require details about the building, such as its location, construction materials, and specifications.