Which two building preparation methods are specified in ISO 9972:2015?

Prepare for the ABAA Whole-Building Airtightness Testing Level 1. Master the concepts with various study materials including flashcards and practice questions. Get ready to ace your exam effortlessly!

The correct answer is rooted in the context of building airtightness testing as outlined in ISO 9972:2015. This standard emphasizes the importance of specific building preparation methods to ensure accurate measurements during the testing process.

The term "in-use" refers to the condition of the building as it operates normally, capturing the real-state performance of homes or commercial buildings. This method allows for evaluating how a building performs under everyday conditions, which is crucial for understanding energy efficiency and indoor air quality impacts.

"Specific purpose" pertains to scenarios where the building is prepared or modified for the testing to meet certain conditions. This preparation might include measures like temporarily sealing up holes or access points that could interfere with test results, allowing for a more controlled environment to assess the building’s air permeability accurately.

Together, these two methods align with ISO 9972:2015's approach to providing comparative results that can inform stakeholders about the integrity of building envelopes and identify areas for potential improvement. The use of these methods enhances the reliability of the testing outcomes, thereby supporting better building performance assessments.

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