Romaine Patio Doors October 26th, 2017 - 03:53:40
A visible "kitemark" on the glass is the consumers assurance that the double-glazed unit has been manufactured to British standards. The BSI has numerous standards including: U-value verification Window Energy Rating and Window Installation. The lower the U-value the better the thermal performance and most local authorities will require this to be 1.8 or better to meet building regulations.
One of the features that adds real value to a home is the patio area. A patio allows you the option of comfortably relaxing outside while enjoying the weather. Its also a great place to entertain guests for picnics parties and holidays. When it comes to deciding what to do with the doors leading out to the patio you also have many options. One of the traditional choices are hardwood patio doors.
Patio doors comprise an outer frame plus individual door frames. These can be made from wood (soft- and/or hard-wood) metal or alloys (usually aluminium) pvc (polyvinyl chloride a thermo-plastic polymer - the u stands for unplasticised) or a composite material which may comprise any of the foregoing materials plus grp (glass reinforced polymer). There is also a style known as frameless where the vertical sides of each door have no frames.
Some manufactures offer optional extras such as tinted glass anti-sun laminated obscured glass and Argon-filled double-glazing. It is also possible to match existing period features by specifying Georgian bar or leaded-light in rectangular or diamond style. An innovative option is switchable privacy glass which enables molecules inside the double-glazing to become transparent or opaque at the press of a button; this is expensive though typically doubling the original price of good quality patio doors.