Technical Conservation™ windows and doors
In the substantial restoration of a large Georgian estate built for and inhabited by the aristocracy, high performance timber sash windows, French doorsets and entrance doors by Mumford & Wood have been used throughout the grand house and numerous outbuildings which span different periods.
Sash windows with cords and sash weights, many with complex arched or curved top frames, are factory finished and double glazed. Of totally traditional design they benefit from modern manufacturing techniques, are highly energy efficient and fully compliant with Part L Building Regulations.
Curved on plan French doorsets and windows have been used entailing a high degree of skill and labour and relies on the accuracy of original drawings created by either an architect or by Mumford & Wood’s own surveyors. A bespoke CAD/CAM package generates the original processes to produce each curved part. Many CAD programmes are required to turn each curved blank into a finished component and a computer generated simulation is a double-check fail safe precaution, a process that requires nil tolerance of accuracy.
Only then can it be ensured that traditional and historic products not only look the part but will meet today’s exacting performance standards for sustainability, insulation and security, and will be delivered on time using state-of-the-art manufacturing techniques and equipment.
“We strive to create the same standard of finish on the curved on plan products as we do on our standard flat product which is done by achieving straight grain on all faces. In essence we have to create ten curved parts for a non-bar sash window regardless of height or width.”