Mineral Wool
Mineral wool batt insulation is made from natural or synthetic minerals such as rock or slag. It is available in both faced and unfaced varieties and is typically installed in walls, floors and ceilings. Mineral wool batts are known for their excellent soundproofing properties, making them a popular choice for areas such as home theaters or bedrooms. They are also resistant to fire, pests and moisture, which can make them a good choice in areas where these factors are a concern. However, mineral wool batts can be more expensive than other types of insulation and can be harder to find in some areas.

Fiberglass
Fiberglass batt insulation is made from glass fibers that are spun into a wool-like material. It is available in both faced and unfaced varieties and is typically installed in walls, floors and ceilings. The facing on fiberglass batts can be made from a variety of materials, such as kraft paper or foil and helps to reduce the amount of air that can pass through the insulation. Fiberglass batts are a popular choice because they are relatively inexpensive and easy to install. However, they can be itchy and irritating to handle and can lose some of their effectiveness if not installed properly