We know that modern window technology is great at keeping out the cold and the noise. But how does it work, exactly? Insulating glass (IG) consists of two (or more) glass panes separated by a vacuum or gas-filled space. The efficiency of the window depends upon the thickness of the space. Typically, most IGs use a space of around 16-19mm.
Convection of heat through the window unit is virtually eliminated thanks to the vacuum or gas cavity. This insulation also drastically reduces noise through the window.
Thermal insulation is a key concern in window design. In addition to the IG technology, modern sash windows also employ draught proofing perimeter seals to reduce heat transfer through the frames.
In addition to keeping out the cold, good double glazing can keep out noise. Good double glazing units can cut out noise pollution by up to 80%, which is the equivalent of 54 dB. In the same way that heat is repelled by the vacuum, sound waves are thwarted by this technology. As the sound waves hit the window pane, they cause vibrations. On a traditional window these are heard inside the house, but a double-glazed panel will stop this vibration dead.
New sash windows from Ventrolla are incredibly efficient at reducing heat loss and noise pollution. In addition to the double-glazed glass technology, all Ventrolla sash windows use the Ventrolla Perimeter Sealing System (VPSS) to eliminate draughts from the frame.
If your budget does not stretch to new sash windows, even restoring your existing windows can make a huge difference to noise and thermal insulation. Ventrolla can restore original sash windows with the latest slim double glazing panes and improve frames and mechanisms, making the old frames almost as good as new.
If you’d like any more information about the thermal efficiencies of a Ventrolla sash window, please speak with our experts.