August 2020


ISO-CHEMIE’s WINFRAMER thermal insulating and load bearing bracket support system for the rapid installation of windows, has gained British Board of Agrement (BBA) certification.

The news, which follows ISO-BLOCO ONE self-adhesive weather tight tape for window frames also achieving BBA product approval, confirms the thermally efficient, airtight WINFRAMER system can accommodate at least 200 kg/m and provide an air-tight cavity support.


WINFRAMER, which is Passivhaus certified and fire rated to up to 30 minutes, is a prefabricated installation frame, manufactured to accommodate cavities up to 250 mm. This allows windows to be supported independently from the face of the wall regardless of any external cladding being in place.


Andy Swift, ISO-Chemie’s sales and operations manager – UK and ROI, said BBA certification, which is recognised throughout the construction industry as a symbol of quality and reassurance, reinforced the product’s outstanding installation qualities and long-term technical performance.


He added: “BBA certification is another significant achievement for us and follows ISO-BLOCO ONE also gaining certification. It clearly demonstrates that ISO-Chemie is committed to providing customers with high-quality, high-performance and innovative specification technologies.”


The composite WINFRAMER brackets can bear heavy windows loads, including bi-fold doors, to provide a reliable, strong and high-performance support frame. Installation is quick with windows attached directly and secured mechanically using either standard fixing screws or fixing lugs in the usual manner.


A hinged insulation core combines with the composite wood structural bracket to become an integral part of the overall wall structure, providing compliance with window energy saving regulations (EnEV) and the RAL quality assurance association.


ISO-BLOCO ONE offers a single product ‘fit and forget’ solution for fast and effective sealing based around the European RAL principles of three level sealing - the inside seal area is more airtight than the external one, allowing any trapped moisture inside the joint, or within the wall, to escape outwards rather than into the building. Product comes with a 10-year guarantee.

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