Please note (added July 2023): CALOSTAT products are no longer manufactured by Evonik. Encon offers alternative super insulation products such as Isoleika ISOCON. If you are looking for further information or require a solution for your project please complete our Project Support form and a member of our team will get back to you.
Mineral-based, high performing modern insulating materials like CALOSTAT® from Evonik, offer an array of technical advantages over traditional materials – they do a better job of insulating, they are non-combustible, long-lasting and recyclable.
Working on behalf of Evonik, Arup, the international planning and consulting firm, tested the material. Their results of the independent study were clear: added value, in the form of additional space, reduced operating costs, and improved comfort, comes from using CALOSTAT® insulation panels.
“By using CALOSTAT® from Evonik, investors can gain more usable floor area within the existing space,” explains Dr. Bettina Gerharz-Kalte, head of the thermal insulation growth field at Evonik.
The London office building in this example was eight stories tall with an area of 20,000 square meters; without increasing the cubic content or changing the external dimensions, the recovered floor space was calculated at 1%. This translates to 210sq m that can be sold or rented out.
Even though use of the high-performance insulating material increased the overall cost of the facade by 10% to 15%, the increase in space allows more space to be sold and rented, and the rental income will allow the building operator to realize its return on investment (ROI) in just four to six years.
CALOSTAT® lowers the heating demands associated with the façade by an additional 2 – 4% and reduces annual cooling demands by as much as 6 – 9%, when compared to traditional mineral wool. The insulating power of CALOSTAT® does not depend on the temperature – the product can perform just as well when the outdoor temperatures are high.
During sun exposure, the product can be expected to reduce interior surface temperatures by approximately 1.5°C on southern facades and by 0.6 to 0.7°C on west facades. Both of these values correspond to a significantly more comfortable environment for users near exterior walls.
According to Evonik, the insulating material can last for at least 50 years with no loss in performance. “Traditional insulating materials usually have to be replaced within that time, and that’s expensive”, points out Tobias Wild-Blatt, an architect and customer advisor for Evonik in the United Kingdom.
For builders, the combination of outstanding insulation performance, non-combustibility, and recyclability that CALOSTAT® offers means more than just efficient insulation—it also allows them to improve the safety and sustainability of a building. Both factors play an increasingly important role in assessing a building.
“What we know from many discussions,” Wild-Blatt explains, “is that investors achieve higher sales prices for longer periods of time from buildings constructed according to ecological criteria—because that’s what buyers are paying more attention to.”
This is another area where CALOSTAT® can help investors: its gold level Cradle-to-Cradle certification and environmental product declaration with a recycling option will have a positive impact on DGNB (German Sustainable Building Council), LEED, and BREEAM assessments.
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