How is unfaced batt insulation typically secured during installation?

Unfaced batt insulation is typically installed using a pressure fit method, where the insulation is compressed slightly and wedged tightly between framing members, such as studs, joists, or rafters. This technique provides a snug fit that helps to eliminate gaps and maximizes thermal performance, as well as minimizing air leakage.

The pressure fit method is advantageous because it allows for easy adjustment during installation, ensuring that the insulation remains in place without the need for additional securing mechanisms. This is particularly useful in areas with varying spacing or where precision is required for proper coverage. The friction created by the snug fit contributes to the insulation's effectiveness in maintaining energy efficiency and comfort within a building.

Other methods, such as staples or adhesive bonding, may be used in certain situations, but they are not typical for unfaced batt insulation, which is designed for easy handling and installation without the need for additional fastening materials.