Published at Monday, October 02nd 2017. by Ormazd in Patio Doors.
Most people are familiar with the sliding glass patio doors. Usually, this is two doors with big, open space windows that allow a lot of light into the home. The doors use a sliding track system that has little round discs sitting inside a mechanism providing traction. Sliding glass doors made out of wood can be plain or very dramatic in design. It really depends on what you envision for your particular home decor.
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.
Metal frames, usually aluminium, provide strength in compact form. As notoriously good conductors (which is a bad attribute for insulation), frames made from aluminium are thermally-broken, which is a good attribute. It means that the metals on the inside and outside of the door frames are not joined, preventing the temperatures from being transferred between them. A bare metal frame would look completely unattractive so it is powder-coated in a choice of over 100 standard colours, including a white that resembles pvc.
It is now easier to choose the style for your door because homeowners now have more choices. In the old days, most patios can do with any kind of door. Some even think that any door is good enough just as long as it closes and opens when you please it. Of course, if you want your home to be in style then you also have to make sure that the patio door style you choose should not go against your homes general theme.
Sight lines is the term used to describe the interruptions in the view through the doors; in other words, the width of the vertical opaque areas between the glass when the doors are closed. On hinged doors, such as French doors and bi folding doors, timber and pvc frames generally have broad sight lines because, unlike aluminium, narrower frames would not be strong enough to be fit for purpose. As a guide to the width of two frames together, cheaper pvc door frames can exceed 200mm, aluminium frames are typically between 135mm and 160mm and frameless patio doors sight lines are under 40mm. Depending on the width of each door and number of doors to be installed, the difference in glass to frame ratio could be significant.