Published at Tuesday, September 26th 2017. by Clarice in 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.
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.
Remove the two screws holding the bottom section of the frame. There is one screw either side of the bottom section. Once these have been removed the bottom section can be prized away from the rest of the frame. Be careful not to lever against the glass or you could shatter it. When the bottom section is clear from the rest of the frame you will be able to remove the wheels. Some wheels have a screw holding them in and some are pressed into a holding bracket. If the retaining screws have rusted you can carefully drill them out, taking care not to make the hole in the bottom section any bigger. Contact your local Hardware Store, Glazing Shop or search on Google for replacement wheels.
You may not have notice, but your old fashioned patio door is causing you to spend unnecessary energy. Ordinary glass is a notoriously good thermal conductor. During summer months, it can let heat from the outside to travel inside. And when it is winter, it can easily radiate coldness inside and may cause drafts. More heat or cold inside the home during summer or winter translates into more use of air-conditioning or heating systems. That means more energy use and more carbon emission and more expensive electric bills. But these doors are such an elegant household feature that many home owners before are not worried about spending more money for electricity and more energy that would cause more carbon emissions. Some have advocated the use of tinted patio glass doors. While tinted glass may be a good thermal insulator, it would deprive a home owner the most valued asset of this type of door: visual transparency. A patio door that would not allow a home owner to relax inside his home to get an uninterrupted view of his garden or yard would be just the same as a standard entry door.
Because slide-and-pivot doors have no hinges, there is no requirement for a sturdy side frame; its only purpose is to cover the gasket that seals the double glazed unit. This means that the views afforded through the expanse of patio doors have minimal interruptions. At the time of writing, there are two versions of frame-less glass doors available in the UK, both using the slide-and-pivot technique: one manufacturer supplies their frameless glass doors with kite-marked double glazed units which have a visible seal, the other uses an almost transparent method of sealing their double glazing. Contemporary by design, the absence of visible characteristics makes frameless glass doors a viable option for period properties.
Having an outdoor space like a patio in your home can lead to some interesting design possibilities. There are all sorts of things you can do to add a touch of flare and interest to an outdoor space like a patio. However, one thing that is often overlooked when an outdoor area like a patio is the patios entrance from the home itself. In these cases, many people overlook the possibility of a beautiful door. Perhaps the most common of all types of exterior doors are sliding glass doors.