The factory, which is due to open in late 2017, will be upgraded, building upon Tarmac’s existing nationwide blocks supply capabilities.

Mark added: “Both our Durox and Toplite aerated block brands are not reliant on ash (PFA), as they use sand as their base raw material. Natural sand is readily available in the UK, enabling Tarmac to offer certainty of supply, consistent formulation and quality, as well as sustained availability of this key building material.” Changes in building codes over the last decade have focused on significantly improving the energy efficiency and thermal performance of UK housing stock, creating more cost-effective properties for homeowners. The very durable and highly thermally efficient nature of aerated blocks, like Durox, makes them the ideal construction material for the housing sector to meet these requirements.