The RAL quality association “Joint sealing components and systems” has thoroughly revised the award guidelines for its quality mark and included in front of wall installation systems in the quality and testing specifications. The IN FRONT OF WALL INSTALLATION SYSTEM ISO-TOP WINFRAMER is the first product in this category to receive the coveted seal of approval.

The IN FRONT OF WALL INSTALLATION SYSTEM ISO-TOP WINFRAMER allows windows and doors to be installed on the outside of a load-bearing wall in the thermal insulation level or air gap of the wall structure. What characterises the in front of wall installation system from ISO-Chemie is that it not only meets requirements related to load-bearing capacity and attachment of the window (suitability for use) and transfer of the loads to the load-bearing wall elements (stability) but also further functions such as forming an airtight seal resistant to driving rain against the masonry, thermal insulation and the reduction of structural thermal bridges, as well as burglar resistance in accordance with RC-3. In addition, the IN FRONT OF WALL INSTALLATION SYSTEM ISO-TOP WINFRAMER creates a level installation surface for the safe attachment and sealing of the windows in accordance with the 3-level principle and the requirements of the “RAL installation guide for the installation of windows and doors”.



Fensterbau Frontale 2016 | ISO-Chemie



The RAL quality mark for the IN FRONT OF WALL INSTALLATION SYSTEM ISO-TOP WINFRAMER was awarded at a press conference held at the fensterbau/frontale 2016 in Nuremberg.


Alongside the IN FRONT OF WALL INSTALLATION SYSTEM ISO-TOP WINFRAMER, ISO-Chemie has other joint sealing components which have already been awarded the RAL quality mark. In the category for multi-function joint sealing tapes, ISO-BLOCO ONE and ISO-BLOCO MULTI-FUNCTIONAL TAPE bear the RAL quality mark. As far as window and façade sealing films are concerned, architects, planners and installers can fall back on a reliable and high-quality range of products such as ISO-CONNECT VARIO SD and ISO-CONNECT VARIO XD.


You will find more information about the RAL-certified products by clicking the links above.

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