Tilt and turn windows: what are they?
Like so many things in Germany that work properly tilt and turn windows are made differently. The driver for this is partly due to Germany energy conservation laws having a higher standard than the UK, but also due to the fact that the German consumer is always looking to the long term. For a product that will last a long time, not just 5-10 years. By law, a product used in a home must be fit for purpose for a long time. Unlike the UK, where “fit for purpose” usually means that it’s operational when new and only a short period (usually a year) after. Many manufacturers have bold claims such as 50 year guarantees. But, when you read the small print, these are so conditional and often mean little practically.
Tilt and turn how do they work
A tilt and turn window fundamentally opens on two axis: tilting when ventilation needed and turning mainly to provide a means of escape from a room in case of fire.
In the tilt position, the window tilts inwards into the room – remaining fixed at the base. This allows ventilation but keeping a good level of security and also shielding off rain. Our heavy duty window opening mechanisms provide security even when open.
Tilt and Turn Mechanism
The very same tilt and turn mechanism allows insertion of 3 butyl rubber seals in the window between the frame and the opening sash with an external seal, mid window seal and inner seal. Many non-tilt and turn manufacturers are limited to one or two seals due to the constructional make up of the frames and reluctance to have additional machining costs of making this feature. Essentially, the cold air is kept at the outside of the window frame and not to the inner edge.
Ever spotted that condensation around the outer of the glass between the glass and frame? This is partly caused by cold air being deep inside the frame. A cold bridge is created, making the inside of the window frame cooler. This is not good for energy efficiency, or the air-tightness of your windows. Tilt and turn windows essentially shut like a bank vault in terms of their overall efficiency.
A really good quick test of the energy efficiency of your windows is to take an incense stick around the frame of your window and float a line of smoke around the window. On windy days, you will see the smoke move not only around the window, but also test the area between the wall and the window, underneath the window board (or internal window sill). See the smoke move and you know you have air leakage from the outside into your home.
Our performance windows are enhanced by our German standards of installation. It’s not just about the window, it’s equally about how it’s installed.
Our customers tell us that our understanding of construction and windows and doors make us quite unique.