The required insulation shield for vents in attic spaces must be secured to prevent what?

The requirement for insulation shields for vents in attic spaces focuses primarily on preventing displacement. When insulation is not properly secured, it can shift due to airflow, gravity, or even vibrations from activities within the building, which can expose the vents. This can lead to reduced efficiency for ventilation systems and allow for moisture or heat build-up, ultimately compromising both the performance of the ventilation and the safety of the attic space.

Securing insulation shields ensures that they remain in place, maintaining the integrity of the ventilation system and preventing any unwanted airflow or build-up that could occur from displaced insulation. This action not only promotes effective airflow but also contributes to the overall safety and energy efficiency of the attic and the building itself.