Award-winning timber window and doors supplier Bereco have welcomed the release of the new Approved Document L as the company’s products already achieve the new notional U-value target of 1.2W/m²K, which is 25 percent better than the limiting standard of 1.6 W/m²K for new homes, which is outlined the document. The latest amendments to the building regulations, including Approved Documents F, L and the new Approved Document O, came into effect on 15th June 2022.
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