PU rigid foam insulated building blocks

Because of rising energy costs, the building materials industry is focusing increasingly on heat conductivity - the lower this value, the better the insulation will be. In a solid construction, a typical insulated external wall consists of either a double wall structure with a core insulation, or a single wall with additional external insulation. Both of these alternatives are costly and have a relatively long construction period.

A new construction method is now available which consists of monolithic brickwork made from hollow blocks with thermal insulation already built in. The advantage: no additional insulation is necessary and there are substantial savings on construction time and costs. In addition, a considerable amount of space is saved as there’s no need for any external insulation. Moreover, where mineral wool and perlite were used before to fill hollow blocks, now even better levels of insulation are provided by the polyurethane rigid foam from The company behind the new building blocks is in Albstadt, Germany, and the product is actually called It’s manufactured from Lias clay, which is formed into a ceramic clay interspersed with air, and its cavity is then filled with Elastopor H.

Elastopor H offers the following benefits:

• Very low heat conductivity
• Very low water intake
• No falling or trickling out of the insulation
• Manageable investments in industrial and building systems
• Rapid cycle times
• Lower requirement for heat energy
• Altogether moderate costs