Spray foam insulation for under-slabs offers a superior alternative to rigid board insulation, providing both moisture control and thermal performance in one seamless application. Closed-cell spray foam is applied directly to the prepared aggregate, creating a durable, continuous barrier that supports rebar and radiant heating systems without the risk of shifting or breakage. Unlike rigid boards, spray foam eliminates gaps and seams that can lead to heat loss or moisture infiltration—helping you build a stronger, more efficient foundation.
Benefits of Spray Foam Insulation for Under-Slabs:
● Creates a seamless, continuous insulation layer under concrete slabs● Provides superior moisture and soil gas control● Supports rebar and radiant heat lines without risk of damage● Prevents shifting, twisting, and breakage common with rigid boards● Speeds up installation with fewer labor steps required● Enhances thermal performance and long-term energy efficiency● Replaces traditional liners in crawl spaces for moisture and gas control
Spray foam insulation under slabs simplifies installation and strengthens your building’s moisture barrier and thermal envelope. Whether for new construction or renovation, it’s the smart choice for ensuring your floors stay warm, dry, and energy-efficient.
At Erickson Spray Foam, we provide professional-grade under-slab insulation solutions designed to meet the highest standards for performance and durability. Our experienced team expertly applies closed-cell spray foam to deliver optimal moisture control, energy savings, and structural protection beneath your concrete floors. We take pride in offering seamless, long-lasting results that help protect your investment from the ground up.
As the trusted spray foam insulation experts serving Wisconsin and Northern Illinois, Erickson Spray Foam is your top choice for under-slab insulation in residential, commercial, industrial, and agricultural projects. Contact us today for a free quote and learn how we can help you create a stronger, more efficient foundation.
Whether you’re insulating a home, commercial building, industrial space, or agricultural facility, Erickson Spray Foam delivers proven results throughout Wisconsin and Northern Illinois. Request your free, no-obligation quote today and discover how spray foam can improve comfort, energy efficiency, and long-term performance.