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Owens Corning Mineral Wool Insulation at M.R. Lee Building Materials

For construction customers across IL

With roots that reach back to an 1800s lab experiment that unexpectedly resulted in the creation of mineral wool, the Owens Corning Corporation has been a force of innovation from its very beginning. Today, its Thermafiber® line – the #1 specified brand of commercial mineral wool – continues to set a high standard for exceptional insulation performance.

At M.R. Lee Building Materials, we understand the peace of mind that comes from knowing your projects are well-protected. Owens Corning Thermafiber mineral wool insulation products are available* from M.R. Lee at our construction yard in IL or can be delivered directly to your commercial or residential jobsites.

Contact us today or search our inventory online to learn more.

*Call our yard to confirm specific product availability. If we do not have it in stock at our yard, we will be glad to order it for you.

Mineral Wool – A Strong, Smart Insulation Solution

A dense, fibrous material made from combining natural fibers (molten volcanic rock, slag, or glass), mineral wool is offered in rolls or batts and is found in a wide range of construction applications, including insulating walls, attics, ceilings, floors, and roofs.

Thermafiber® Mineral Wool Covers You in Quality

M.R. Lee stocks several Thermafiber mineral wool insulation products for construction pros in the Lake Michigan area and beyond.

Thermafiber® RainBarrier® continuous insulation products provide excellent performance in rainscreen and exterior cavity wall construction applications and are compatible with various mechanical attachment methods and air barrier systems. All RainBarrier® products are non-combustible, fire-resistant, vapor permeable, and easy to fabricate and install.

Thermafiber® SAFB™ (Sound Attenuation Fire Blankets) are mineral wool insulation batts that provide sound control and fire protection within a variety of interior UL Solutions fire-rated wall designs and floor-ceiling assemblies.

Thermafiber® Safing mineral wool provides enhanced fire protection in perimeter fire containment systems (tested to ASTM E2307), floor and wall penetrations, construction joints, and other firestopping applications. These products are noncombustible, moisture-resistant, non-corrosive, non-deteriorating, mildew-resistant, and vermin-resistant.

Thermafiber mineral wool insulation products offer:

  • Minimum 70% recycled content
  • Fire containment in rated assemblies
  • Fire-resistant to temperatures above 2,000°F (1,093°C)
  • Mold-resistance
  • Enhanced acoustical performance
  • Considerable conservation of energy and reduction of greenhouse gas emissions
  • Credit contributions in several green building programs, such as LEED® and Green Globes®

Buy Thermafiber Mineral Wool at Interior Products Supply in IL

Illinois construction pros — learn more about Owens Corning mineral wool insulation or start your order now. M.R. Lee Building Materials is here to help.

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About M.R. Lee Building Materials

From our conveniently located yard in Alsip, Illinois, M.R. Lee serves construction customers in the Chicagoland area, as well as throughout Kankakee County and northwest Indiana. A proud member of the GMS family of companies since 2016, M.R. Lee provides exceptional construction products and building materials, from drywall and steel to insulation, acoustical tiles, and more.

About Owens Corning

In 1935, two of America’s leading glassworks companies (Corning Glass Works and Owens-Illinois) forged a partnership to share in the exploration and development of an emerging new material – fiberglass. A few years, and many advancements in the processing and application of glass in insulation later, the Owens Corning Fiberglass Corporation was born. Today, Owens Corning continues to lead the insulation industry it helped pioneer, leveraging the talent of thousands of global employees to develop sustainable insulation solutions that improve the future – for customers, suppliers, partners, and the world.

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