Foundation insulation is insulation installed along the interior or exterior of your home's foundation walls to reduce heat loss, improve energy efficiency, and create a more comfortable basement or crawl space. Proper foundation insulation is an important part of a complete home insulation strategy because it helps reduce energy loss where your home meets the ground.
Foundation Insulation
in Eau Claire, Chippewa Falls, and Menomonie
Foundation insulation is key part of an overall strategy to turn your Eau Claire area home into an energy efficient one.
Request an EstimateA good foundation has insulation.
Properly air sealing vulnerable spots in your home can significantly reduce heating and cooling costs and create a healthier indoor environment.
First, we recommend a home performance test. The test includes depressurizing your home to measure air changes per hour, infrared scanning to identify air loss, insulation level evaluation, humidity testing, and combustion safety check. Then, we give you educated recommendations for optimum energy efficiency. We can usually improve on both the interior and exterior of your foundation. It will save you energy and money, while also making your basement more comfortable. Foundation insulation may even qualify you for rebates.
Interior Benefits of Foundation Insulation: On the interior of your unfinished concrete/block walls, we recommend the installation of a Thermax foil faced foundation insulation. It's the only product that has been fire tested, allowing you to leave it unfinished. Any other choices of foam board like Johns Manville or Pink board work equally as well, but you must install a fireproof finish such as drywall over them after the installation.
Exterior Benefits of Foundation Insulation: We install 1-inch rigid foam around the exterior perimeter of your home to a minimum of 10 inches below grade. After installation of the foundation insulation, you will instantly notice a much more comfortable basement, because the warm to cold transfer can no longer take place. This can drastically improve the comfort of your home. We offer a crushed rock or stucco finish as our standard option and can install custom colors to match almost any color scheme.
Rock & Tait also provides air sealing, blown-in insulation, dense pack insulation, and spray foam insulation.
Contact our Eau Claire area insulation contractors todayOur Foundation Insulation Product Lines
DuPont™ Thermax™ (ci) exterior insulation delivers one of the highest R-values available for immediate insulation and weather protection.
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Discuss your home with an insulation contractor, and see how Rock & Tait can help you increase efficiency, decrease energy bills, and have a more comfortable home.
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Foundation Insulation FAQ
What is foundation insulation?
Can foundation insulation lower my energy bills?
Yes. Foundation insulation reduces heat transfer through basement walls, helping your heating and cooling system operate more efficiently. Combined with proper air sealing and attic insulation, it can significantly reduce energy loss and improve your home's overall efficiency.
Should I insulate the inside or outside of my foundation?
Both interior and exterior foundation insulation can be effective, depending on your home's construction and project goals.
- Interior foundation insulation is commonly installed on unfinished basement walls using rigid foam insulation such as DuPont™ Thermax™, which is approved to remain exposed without drywall in many applications.
- Exterior foundation insulation uses rigid foam installed around the outside of the foundation to reduce heat transfer before it enters the home.
During a home evaluation, we'll recommend the solution that best fits your home's needs.
What are the benefits of foundation insulation?
Foundation insulation provides several important benefits, including:
- Improved energy efficiency
- Lower heating and cooling costs
- A warmer, more comfortable basement
- Reduced drafts and cold floors
- Better moisture control
- Improved indoor comfort year-round
- Potential eligibility for energy-efficiency rebates
Foundation insulation works best when combined with proper air sealing and other insulation improvements.
Why is foundation insulation important?
Many homeowners focus on insulating their attic but overlook the foundation. An uninsulated foundation allows heat to escape through basement walls and floors, making your home less comfortable and increasing heating and cooling costs. Proper foundation insulation helps improve indoor comfort, lower energy bills, and reduce temperature fluctuations throughout the home.
Will foundation insulation make my basement more comfortable?
Absolutely. Many homeowners notice their basement feels noticeably warmer in winter and more comfortable year-round after foundation insulation is installed. Reducing heat transfer through foundation walls also helps make first-floor rooms above the basement more comfortable.
Does foundation insulation help with moisture problems?
Foundation insulation can help reduce condensation on basement walls by keeping interior surfaces warmer. However, if your basement has water leaks or drainage issues, those problems should be addressed as part of a complete moisture management plan before or alongside insulation improvements.
How long does foundation insulation last?
Quality foundation insulation is designed to last for decades when properly installed and protected from damage. It requires very little maintenance and continues providing energy savings and improved comfort for many years.
What insulation products does Rock & Tait use for foundation insulation?
For unfinished basement walls, Rock & Tait recommends DuPont™ Thermax™ foil-faced foundation insulation because it has been fire tested and can often remain exposed without requiring drywall. For exterior applications, rigid foam insulation is installed around the foundation perimeter to improve energy efficiency and basement comfort.
Should I have a home energy evaluation before adding foundation insulation?
Yes. Rock & Tait recommends starting with a home performance evaluation that measures air leakage, insulation levels, humidity, and overall home efficiency. This helps identify where your home is losing energy so improvements can be prioritized for the greatest benefit.
Is foundation insulation a good choice for Wisconsin homes?
Yes. Wisconsin's long, cold winters make foundation insulation an excellent investment. By reducing heat loss through foundation walls, homeowners can enjoy improved comfort, lower energy bills, and a more energy-efficient home throughout every season.
Can foundation insulation increase my home's value?
Energy-efficient improvements such as foundation insulation can make your home more comfortable and attractive to future buyers. Lower utility costs, improved basement comfort, and better overall home performance are valuable long-term benefits.
Why is professional foundation insulation installation important?
Proper installation ensures insulation is placed correctly, vulnerable air leaks are addressed, and moisture concerns are considered before installation. Professional installation also helps maximize energy savings and ensures the insulation performs as intended for years to come.
Why choose Rock & Tait for foundation insulation?
At Rock & Tait, we help homeowners throughout Eau Claire, Chippewa Falls, and Menomonie improve home comfort through customized insulation solutions. We begin with a comprehensive home performance evaluation to identify where your home is losing energy before recommending foundation insulation, air sealing, or other improvements. Whether insulating the interior or exterior of your foundation, our experienced team focuses on quality workmanship, energy efficiency, and long-lasting results that help you enjoy a warmer, more comfortable home.
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