What keeps batt insulation located under the floor joist in place?

Prepare for the Mississippi Residential Builders License Test. Use flashcards and multiple choice questions with detailed explanations, designed to help you pass the exam successfully!

Batt insulation located under the floor joist is typically kept in place by using wire mesh or rigid board. This method facilitates secure positioning while allowing for proper airflow and preventing the insulation from sagging or falling out of its intended location. The wire mesh acts as a physical barrier that holds the insulation against the joists, ensuring it remains secure even over time and under varying environmental conditions.

Utilizing rigid boards or mesh gives additional structure to the installation, providing stability and support which is essential for the effectiveness of the insulation in maintaining energy efficiency and temperature regulation in the home. Other options like insulation tape or adhesive spray may not provide the necessary long-term support for batt insulation in this specific application, and wooden blocks could be used in certain scenarios but are not commonly employed for this task.

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