A Cork-based manufacturer has become one of the latest Irish firms to secure British Board of Agrément (BBA) certification.

The insulated windowsills manufacturer, Passive Sills, was recognised with the accreditation which covers the firm's standard sill product for new build as well as its over-sill system, for the insulation of existing concrete sills in retrofit projects.

This certification covers the use of the product in all standard forms of construction including timber frame, cavity wall and ICF.

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As traditional windowsills are made from concrete, they can form a major thermal bridge that cuts through the insulation layer of a building, losing substantial amounts of heat. Passive Sills' products are made from polystyrene and are designed to eliminate thermal bridging, as well as being significantly lighter in weight. They are already certified by the Passive House Institute.

Speaking to Passive House Plus, Patrick Beausang of Passive Sills said: "We're delighted to have achieved BBA certification and it demonstrates that our product complies with all relevant regulations in the UK."

The company's sill is also currently in the process of being evaluated for an Environmental Production Declaration (EPD).

(CM/MH)