Winframer specified for residential window upgrade

ISO Chemie’s thermal insulating and load bearing bracket support system has been specified for a major South East housing refurbishment programme.

Dozens of Winframer units are being retrofitted by Sandy-based Potton Windows on pre-fabricated residential properties at a Milton Keynes housing estate over the next two years.

The use of Winframer is designed to help provide improved standards of thermal insulation, eventually bringing the properties up to zero carbon ready standards and delivering energy efficiencies for homeowners together with long-term cost savings.

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

Said to be ‘quick and easy’ to install, the product’s application alongside the new window units is already reaping benefits for some homeowners, who are seeing a reduction in their heating usage with ‘huge’ energy cost savings.

The Potton Windows Milton Keynes project comes as a wider Government strategy continues to push to reduce carbon levels in housing that has single skin, cavity or non-cavity walls – buildings that have a reputation for losing considerable amounts of energy, heat and sound.

Tom Ray, contracts manager at Potton Windows, which manufactured and installed the original windows in the late 1980s, said: “As window system designers and developers, we are always looking at smarter ways to deliver low carbon units. ISO Chemie’s fit and forget products offer solutions for effective window sealing, delivering measurable airtight, acoustic and thermal sealing benefits in the process.

The composite Winframer brackets can bear heavy windows loads, including bi-fold doors, to provide a reliable, strong and high-performance support frame. Windows are 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.