PreFirred EPS
PreFirred EPS insulation, the financially savvy choice, is ideal for finishing basements, concrete walls, or concrete masonry unit (CMU) walls. This cost-saving solution is suitable for both interior and exterior applications and provides a multitude of benefits to residential and commercial/industrial building projects.
Manufactured with Excellence
PreFirred insulation is expertly crafted with expanded polystyrene (EPS), ensuring a high-quality insulation solution. Available in 1½”, 2”, or custom thicknesses, as well as 4’x 8’ or 2’x 8’ sheets, PreFirred insulation offers versatility to accommodate various project requirements.
Including 1”x 2” solid wood firring strips, embedded 16” or 24” in the center, further enhances its suitability for various applications.


Applications
With its diverse range of applications, PreFirred EPS insulation proves to be a valuable asset for interior and exterior use. In interior applications, furring strips are employed to attach PreFirred to concrete and again to attach interior finishes such as gypsum board or other code-compliant products. In exterior applications, furring strips are utilized to attach PreFirred to CMU walls and then again to attach siding, providing a seamless and effective installation process.
Benefits
Embracing PreFirred EPS insulation has many benefits that stand out in the construction and insulation industry. With no framing studs, this insulation solution is a time-saving and cost-effective option.
It quickly pays for itself in energy savings and contributes significantly to energy-efficient constructions. The insulation’s 1½” thick sheets offer a stable R-6 level of insulation, while the 2” thick sheets provide an even higher R-8 level, ensuring superior thermal performance.
Additionally, PreFirred insulation’s continuous design prevents air infiltration and eliminates thermo shorts. Its resistance to mold, recyclability, and environmentally responsible nature further position it as a top choice for insulation needs.

Partner with Benchmark
PreFirred EPS insulation stands out as a preferred solution for various construction projects, delivering exceptional performance, cost savings, and environmental responsibility. Whether insulating cold, uninsulated concrete walls, CMU walls, residential basements, or commercial/industrial building CMU above-grade walls, PreFirred EPS insulation offers a reliable and effective solution.
Contact us today to choose PreFirred for your insulation needs and experience the difference in quality, performance, and value it brings to your projects.