Attic Insulation & Air Sealing in Duluth, MN

Make your home more energy efficient

Alliance Inc. offers attic insulation services for Duluth, Minn., and beyond. We specialize in spray foam and blown-in attic insulation and can help you determine which insulation solution is best for your home.

Why should you insulate your Duluth attic?

There are several reasons why you should insulate your attic:

Energy efficiency: One of the main reasons to insulate your attic is to improve your home’s energy efficiency. Proper insulation can help prevent warm air from escaping your home during the winter and keep hot air from entering your home during the summer. This can help reduce your energy bills and make your home more comfortable.
Comfort: A properly insulated attic can help regulate the temperature and humidity levels in your home, making it more comfortable to live in. It can also help reduce drafts and hot or cold spots in your home.
Moisture control: Insulating your attic can also help prevent moisture buildup in your home. Moisture buildup can lead to mold growth and damage to your home’s structure. Proper insulation can help regulate the temperature and humidity levels in your attic, which can reduce the risk of moisture buildup.
Noise reduction: Insulation can also help reduce noise transmission between different levels of your home. This can be especially beneficial if you have a noisy HVAC system or live in a noisy area.
Increased home value: A well-insulated home can be more attractive to buyers and can increase the value of your home. This can be especially important if you plan to sell your home in the future.
Helps prevent ice dams: Proper attic insulation can help prevent ice dams by keeping the warm air in the living space from escaping into the attic and heating the roof. This can help keep the roof cold and prevent snow and ice from melting. However, other factors such as roof ventilation and air sealing also play a role in preventing ice dams.

Spray Foam vs Blown-in Attic Insulation

At Alliance Inc., we offer both spray foam and blown-in attic insulation. Each offers different advantages, and we can help recommend which would be right for your home.

Spray foam insulation is typically more expensive than blown-in insulation, but it provides a more effective air seal.

It’s applied as a liquid, expanding to fill gaps and crevices, forming an airtight seal that can prevent air leaks and enhance energy efficiency. Additionally, it outlasts blown-in insulation, often requiring no replacement for many years.

Blown-in insulation, on the other hand, is usually more budget-friendly and can be installed more swiftly.

Blown-in insulation is made from loose fibers of fiberglass or cellulose, which are blown into the attic using a special machine. This creates an insulating layer that can help regulate the temperature and humidity levels in the attic.

Blown-in insulation is also easier to install around obstacles such as ductwork and wiring.

In terms of advantages, spray foam insulation provides a more effective air seal, which can help improve energy efficiency and reduce energy bills. It can also help prevent moisture buildup and mold growth in the attic.

Blown-in insulation is a more affordable and quicker option for insulating attics, and it can be installed around obstacles more easily.

Overall, the choice between spray foam and blown-in insulation depends on your budget, insulation needs, and personal preferences.

Frequently Asked Questions About Attic Insulation in Duluth

How do I know if my attic needs more insulation?

Common signs include cold room ceilings, high winter heating bills, uneven indoor temperatures, or recurring ice dams on your roofline. If you go into your attic and can see the wooden floor joists exposed above the current insulation, you likely have less than R-30 insulation and need an upgrade.

What R-value is recommended for attics in Duluth, MN?

Because Duluth sits in Climate Zone 6/7, the Department of Energy recommends an attic insulation depth of R-49 to R-60 (roughly 16 to 20 inches of blown-in material).

Can new insulation be blown in over existing attic insulation?

Yes, as long as the existing insulation is dry, clean, and free of mold or pest contamination. If old insulation has suffered water damage from past roof leaks or ice dams, we recommend removing the compromised material before installing new insulation.

Does insulating my attic completely prevent ice dams?

Insulation is the biggest factor, but it works as a system alongside proper air sealing (stopping warm air leaks around canned lights, chimneys, and attic hatches) and proper soffit/ridge ventilation. We address air leaks and air flow together to ensure your roof deck stays cold all winter.

How long does attic insulation installation take?

Most standard residential attic insulation projects in the Duluth area are completed in just one day with minimal interruption to your daily routine.

Looking for an Attic Insulation Company Near You in Duluth? Contact Alliance Today!

For more information about attic insulation, contact Alliance Inc. at (218) 591-8039.