Mumford &amp; Wood, the Essex-based specialist manufacturer of premium timber windows and doors, oHer a range of Contemporary tilt turn products that reach the Passivhaus standards. <br> <br> Mumford &amp; Wood’s tilt turn window sections are available triple glazed and aluminium-clad. These Passivhaus Contemporary products will admit more energy to a building than will actually escape. This criteria is one of six building standards that comply to a Passivhaus speciJcation and ensures that the building has very low energy and heating requirements, some 90% lower than an average house. <br> <br> Mumford &amp; Wood’s Passivhaus Institute (RPHD)-certiJed systems achieve a whole window (U-window) U-value of less than 0.8 which has been veriJed using EN 10077. Triple glazed Contemporary products, which include tilt turn, alu-clad windows and doors, and sliding, lift and slide and bi-fold doors, provide a G-value of 51 – the percentage that indicates how much solar energy passes from the outside to the inside – being the required measurement of designs for both SAP and PHPP software.<br> <br>