What Is Batt Insulation?
Batt insulation comes in pre-cut rectangular pieces designed to fit snugly between the framing of your walls, ceilings and floors. It reduces heat transfer through the building’s exterior, improving energy efficiency and minimizing drafts. Batt insulation is known for being easy to install and cost-effective, making it a go-to choice for both DIYers and professionals.
Want to learn more about insulating your home? See our articles on weather stripping your windows, installing blown-in attic insulation and applying spray-foam insulation. You can also use our Roll and Batt Insulation Calculator to figure out how much insulation you need to purchase for a DIY project.
What Is Batt Insulation Made Of?
Batt insulation is commonly made from:
- Fiberglass: the most prevalent option due to its fire resistance and affordability.
- Mineral Wool: also known as rock wool, which is often made from industrial byproducts like basalt rock and recycled slag.
Types of Batt Insulation and Their Features
Here are some of the most common varieties of batt insulation.
Fiberglass Batt Insulation
Made from extremely fine glass fibers woven into panels, fiberglass is the most widely used type of batt insulation.
Key Features:
- Improves energy efficiency by maintaining indoor temperatures, reducing electricity costs.
- Affordable compared to other materials.
- Comes in pre-cut panels for easy installation.
- Provides basic soundproofing by dampening external noise.
- Fire-resistant, adding an extra layer of home safety.
Mineral Wool Batt Insulation
Created from basalt fibers and recycled slag, this dense insulation material offers enhanced durability.
Key Features:
- Superior fire resistance compared to fiberglass.
- Higher density for enhanced soundproofing capabilities.
- Offers excellent thermal efficiency.
- Naturally water-repellent, resisting moisture and mold.
How Does Batt Insulation Work?
Batt insulation works by trapping pockets of air within its fibers. These air pockets significantly slow the transfer of heat in and out of your home. In winter, this keeps warm air inside, maintaining a cozy indoor environment. In summer, this blocks external heat, helping to keep interiors cool. Additionally, batt insulation reduces outside noise by absorbing sound waves, creating a quieter living space.
Benefits of Installing Batt Insulation
Installing batt insulation offers several advantages:
- Lower Energy Bills: It helps regulate indoor temperatures, reducing reliance on HVAC systems and cutting electricity costs.
- Noise Reduction: It minimizes environmental noise, making your home more peaceful.
- DIY-Friendly: The pre-cut panels are easy to handle and install, especially for do-it-yourselfers.
- Sustainability: Many types are made from recycled materials, making them an environmentally conscious choice.
Final Thoughts
Batt insulation is a practical and efficient way to manage your home's temperature and energy use. Understanding the different types, their materials and their benefits will help you choose the right insulation for your needs. Whether you're building a new home or upgrading an old one, properly installed batt insulation ensures year-round comfort and long-term savings.