Building Insulation

Our award-winning aerogel particles are enabling the next generation innovations in energy efficient and healthy building products.

As the industry leader in particulate aerogel additives, we are dedicated to bringing new innovations to the marketplace and helping our commercial partners and customers meet the growing demands for functional and energy efficient building solutions. Our aerogel product line delivers a range of benefits for building insulation applications, such as:

  • Energy efficiency. Traditional insulating materials rely on trapping air or blowing agents within their structure to create insulation value. The performance of these materials is limited by the thermal properties of still air. Aerogel has more than twice the insulating performance of still air. It also has an open structure that allows vapor to readily diffuse through its matrix. Incorporating aerogel into existing or new insulation materials can displace air and replace it with the superior performance of aerogel. Aerogel additives enable insulation boards, blankets, plasters, coatings and composites to achieve previously unattainable thermal performance.
  • Space savings. Our aerogel enables higher insulating values in less space than legacy insulation materials. Best-in-class aerogel-based building products, such as rigid boards, insulating plasters and thermal insulation coatings, can deliver up to three times greater thermal performance than peer products. When renovating with limited space, aerogel-based solutions can help achieve strict energy efficiency requirements. In new construction, architects gain superior flexibility when designing modern buildings.
  • Moisture management. Building breathability has come to the forefront of the construction industry in recent years. As knowledge grows around building dynamics, there is a need for innovative products that help control gas and moisture transport and prevent mold and mildew. Other high performing insulation products on the market today are vapor-closed systems. Our aerogel products are breathable and do not promote the growth of mold and mildew. New vapor-open aerogel-based insulation materials and systems break the trade-off between high thermal performance and moisture management.
  • Design flexibility. Aerogel additives provide product innovators the flexibility to achieve a broad spectrum of properties when creating new high-performance insulating products. Aerogel particles can easily be added and formulated into a variety of forms, such as slurries, dispersions, dry mixtures, coatings, plasters, non-wovens, textiles, composite boards, packs and more. Thermal insulation products incorporating our aerogel allow manufacturers to provide their customers with the highest performing insulation systems, allowing designers, architects and building owners to realize their aesthetic and energy efficiency goals.

Aerogel can be used in various building insulation applications, including:

High-performance rigid boards

Aerogel is used in boards for insulation and finishing systems. Aerogel containing boards deliver two to three times the performance of conventional insulation boards, requiring only one-third to one-half the space. This makes them an ideal option for interior applications where space is restricted and thickness of insulation especially critical. Aerogel-based rigid boards are hydrophobic and open to vapor, supporting the trends towards moisture management in building construction. To purchase aerogel-based rigid boards, please contact Sto and Rockwool.

High-performance insulating plaster

In the past, historical preservationists and homeowners had to compromise between preserving the look of the facade and significantly improving the energy efficiency of historical buildings. Our aerogel products now deliver an insulating plaster solution that considerably reduces heating and cooling energy consumption while retaining the look of older buildings.

Plaster formulations using our aerogel provide better insulation than polystyrene board while still meeting the European fire class A specification. Aerogel-enhanced plasters have thermal conductivities of less than 30 mW/m-K (0.21 Btu-in/(hr-ft2-°F)) providing up to three times the insulating and thermal performance of standard insulating plasters. These benefits are achieved while maintaining the same application techniques and equipment used for traditional plasters.

High-performance cavity wall infill

Aerogel particles are used in granular form as insulating cavity wall infill. Aerogel particles flow easily allowing them to reach narrow spaces and flow around tight corners. Packed aerogel particles can have up to four times the thermal performance of other infill materials such as perlite, vermiculite and blown glass fibers. Aerogel-based building insulation can enhance your building's energy efficiency.



Building insulation products that use Cabot aerogel

  • Sto is a leading producer of thermal insulation systems for facades, including award-winning StoTherm In Aevero.
  • Fixit, another award-winning aerogel-based innovation, is a highly insulating plaster or render for interior and exterior applications.