Brothers Insulation Is Your Premier Insulation Contractor in Duluth & Hermantown, MN
At Brothers Insulation, we know Minnesota winters. From Duluth’s lakeshore winds to Hermantown’s deep freeze, proper insulation isn’t just comfort, it's essential. Our team delivers dependable installation, clear communication, and energy-saving results that last.
We specialize in:
- Residential & Commercial Insulation
- New Construction & Retrofit Projects
- Energy Audits & Air Sealing
- Fiberglass Batt, Spray Foam, and Blown-In Insulation
- Attic, Wall, Crawl Space & Basement Insulation
The Value of Fiberglass Batt Insulation in Northern Minnesota
When it comes to insulating homes in climates like ours, Fiberglass Batt Insulation remains one of the most effective, cost-efficient options available. It is made of fine glass fibers woven into flexible panels that fit snugly between wall studs, ceiling joists, and floor joists. It’s a proven and widely used insulation solution in homes across the U.S. — especially in areas with harsh winters.
Batt Insulation is designed to
slow heat transfer, helping keep warm air inside during winter and cool air inside during summer. It also, meets recommended
R-values for walls and ceilings in cold climates when properly installed.
Cost-Effective & Energy Efficient
- One of the most affordable insulation materials without sacrificing performance.
- Helps reduce heating costs — a big deal in regions where homes run furnaces for months on end.
- When paired with proper air sealing, fiberglass batt can significantly lower monthly energy bills.
Easy to Install & Maintain
- Installed quickly by professionals with precise cuts around pipes, wiring, and framing.
- Performs reliably over decades with no active maintenance required.
Moisture & Fire Safety
- Made from non-combustible glass fibers, enhancing fire resistance.
- When installed with proper vapor barriers and ventilation, it helps manage moisture and mold risk.
Ideal Insulation Applications
🔹 Attic & Ceiling Cavities
🔹 Exterior Walls of New or Existing Homes
🔹 Basement & Crawl Space Walls (with proper moisture protection)
🔹 Garages, Add-Ons & Remodels
Does attic sealing really lower energy bills?
Yes. By reducing air leakage, your heating and cooling systems work more efficiently, which can lower energy costs.
What is R-49 insulation, and why is it important?
R-49 insulation provides a high level of thermal resistance, helping prevent heat loss in colder climates.
Can attic sealing help prevent ice dams?
Yes. Proper sealing reduces warm air escaping into the attic, which helps limit ice dam formation.
How long does attic sealing take?
Most projects can be completed in a short timeframe, depending on attic size and condition.
Do I need to replace all my existing insulation?
Not always. Our team evaluates existing insulation and recommends replacement only when necessary.
Common Questions About Attic Sealing and Ventilation
