Exterior wall insulation helps to keep your home cool in the summer and comfortably warm in the winter. But did you know that there are different types of wall insulation options? Picking the right one for your home can change the game, improve home comfort, and save money on your energy bill. We’ll give you the inside scoop on the best exterior wall insulation options for your home.
How to Decide the Type of Insulation for Your Exterior Walls
Before we get into the options available to insulate your exterior walls, let’s discuss the factors that should be part of your consideration process. Here’s what you need to know.
Climate and Weather Conditions
The local climate plays a significant role in determining the most effective type of insulation. Consider your area’s average temperatures, humidity levels, and weather patterns.
Building Type and Age
The construction and age of your home can impact the insulation choice. Older homes may have different insulation needs compared to newly built houses.
Insulation R-Value
The R-value measures the insulation’s ability to resist heat flow. Higher R-values provide better thermal performance. Choose insulation with an appropriate R-value.
Budget and Cost-Effectiveness
Evaluate the upfront costs of the insulation materials and installation against the potential energy savings over time. Some options may have higher initial costs but long-term savings.
Types of Exterior Wall Insulation to Consider
Now that you know the factors to consider, let’s get into the various types. The approach can vary depending on whether you’re dealing with open exterior walls or enclosed existing walls. Open walls, often found in new constructions or during major renovations, allow for easier installation of insulation materials. Enclosed existing walls, on the other hand, present a different challenge, requiring insulation to be added without removing large sections of the wall.
Fiberglass
Fiberglass insulation consists of fine glass fibers and is typically available in batts or rolls. It’s a popular choice due to its affordability and ease of installation. Fiberglass is ideal for open-wall applications, as it provides good thermal performance and is fire-resistant. Plus, it will last up to 100 years, though you may wish to have it reapplied every 15 to 20 years.
Spray Foam
Spray foam insulation expands on application, filling cracks and gaps to provide an excellent air barrier. It’s perfect for open and enclosed walls, offering high insulation value and preventing air leakage. Spray foam is super handy for sealing those hard-to-reach areas.
Blown-In Cellulose
Blown-in cellulose is composted of fire-retardant recycled paper. It is blown into walls using special equipment, making it an option for open and enclosed walls. This type of insulation effectively reduces air leaks and provides good thermal resistance. And it will last a good 20 to 30 years.
Let Anderson Insulation of ME Help With Your Exterior Insulation
If you need insulation for your exterior walls, leave it to the Anderson Insulation of Maine professionals. We’ve been serving the surrounding community for 75 years and look forward to helping make your home more comfortable and energy efficient.