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FRAME DIMENSIONS
It is a very usual and at the same time unpleasant fact for aluminum frame buyers, after having the frames installed, to discover one of the following:
This happens because the frame takes up a lot of space from the initial wall opening but also from the interior and exterior space. In this article we will not take into consideration the frame standards that refer to air and heat permeability. We will only examine the space they take up and will refer to three basic frame categories: Opening, Double Sliding and Retractable Sliding. The numbers mentioned below are indicative, as they vary according to the extrusion companies (system producer) and the frame series.
Opening frames are the ones which take up a lot of space, because during the function of the moving frames (opening-closing a door or window) they trace a curve inwards for the glass pane or outwards for the shutter (if there is one). If, for example, an object is to be placed in front of them (e.g. table, sofa), it is not recommended and it would be preferable to choose a different solution. The particular frames are mostly installed in detached houses, special buildings but also to replace old, usually wooden, frames.
The calculations for their application, when, for example, we have an initial wall opening of 100cm width and 220 cm height, false frame included, are the following:
· Single sash opening with sill
Width opening 100cm – 19cm = 81cm
Height opening 220cm – 19cm = 201cm
Visible glass pane width 100cm / 2 – 23cm = 27cm
Visible glass pane height 220cm – 29cm = 191cm
Visible glass pane height 220cm – 29cm = 191cm
Double sash opening with sill
Width opening 100cm – 19cm = 81cm
Height opening 220cm – 19cm = 201cm
Visible glass pane width 100cm / 2 – 23cm = 27cm
Visible glass pane height 220cm – 29cm = 191cm
Visible glass pane height 220cm – 29cm = 191cm
Double sliding frames are the ones which do not take up any of the useful space – interior or exterior – due to the frames moving on their horizontal axis. They are recommended for large openings because they can use more than 2 sashes (3,4,5,6). Of course, they will not provide us with the maximum wall opening, because when the moving frames move (e.g. in a double sash double sliding), one sash overlaps the other.
The calculations you can do in an initial wall opening of, for example, 150cm width and 220cm height, false frame included, are the following:
· Double sash double sliding
Width opening 200cm / 2 – 20cm = 80cm
Height opening 220cm – 16cm = 204cm
Visible glass pane width 200cm / 2 – 19cm = 81cm
Visible glass pane height 220cm – 30cm = 190cm
Retractable Sliding frames, just like double sliding ones, do not take up any of the useful space – interior or exterior, due to them moving on their horizontal axis. In the particular frame type, two different walls are needed, with the frame track between them. This means a much larger wall opening as far as width is concerned. There are two categories: single sash and double sash.
The calculations you can do in an initial wall opening of, for example, 150cm width and 220cm height, false frame included, are the following:
· Single sash retractable
Width opening 150cm -22cm = 128cm
Height opening 220cm – 16cm = 204cm
Visible glass pane width 150cm – 26cm = 124cm
Visible glass pane height 220cm – 30cm = 190cm
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