This product, commonly found in home improvement retailers, is a fiberglass batt designed to provide thermal resistance of R-21. The facing, typically paper or foil, acts as a vapor retarder to control moisture movement within a building’s structure. It’s primarily used in walls and ceilings to reduce heat transfer and improve energy efficiency in residential and commercial buildings. For instance, it might be installed between studs in a 2×6 wall to help maintain a consistent interior temperature.
Employing materials with such a rating offers significant benefits in reducing heating and cooling costs. Proper installation can lead to a more comfortable indoor environment and contribute to lower energy consumption, thus reducing a building’s environmental impact. The use of faced products builds upon decades of research and development in building science, aiming to create more efficient and durable structures. This approach to insulation is aligned with current energy efficiency standards and building codes in many regions.
