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Insulating Glass

Insulating glass is one of the main product groups of the company ISOTHERM s.r.o., which is also produced with certified technology.

They consist of at least two sheets of glass separated by one or more spacers hermetically sealed around the perimeter of the glass.

The interglass space is filled with an inert gas (argon, krypton). The inner and outer sealing material is mechanically stable and durable. Depending on the type of glass used, insulating glazing can have excellent thermal insulation, anti-sun, security, design, noise, fire protection or bulletproof properties.

ČSN EN 1279 contains the necessary information regarding insulating glazing.

Insulating glazing is predominantly designed with regard to building physical requirements relating to:

  • thermal technology,
  • airtightness,
  • reflection and anti-reflection,
  • safety and security

Technical Data

Technical data description

Technical Data

Technical data descriptin

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Glass Grids

Glass Grids description

Glass Grids

Glass grids description

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Ornaments

Ornaments description

Ornaments

Ornaments description

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Technical Data

Isotherm insulating glass is manufactured using proven two-stage sealing technology (butyl, polysulfide). Due to their excellent properties (insulation, soundproofing, anti-sun, reflective, safety) they are widely used in the construction industry for windows, doors and all-glass facades. Compared to single glazing, insulating double glazing allows to reduce heat loss by 38% to 80% depending on the type and design of the insulating double glazing.

The following figure describes in detail the different parts of insulating glazing.

Schéma izolačního trojskla a dvojskla

Technical description

  1. Glass – all types of Float flat glass + special glasses
  2. Aluminum spacer – used thicknesses 6-24 mm
  3. Molecular sieve – zeolite based desiccant
  4. Butyl – first stage of double glazing sealing applied by heat
  5. Polysulphide sealant – second stage air curing sealant
  6. Intermediate space – filled with air, gas (argon, sulphur hexafluoride – SF 6, or a mixture of gases according to the requirements of the double glazing properties)
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Nadmořská výška montovaných skel

In the production of insulating glass, the interspace is filled with inert gas at the existing atmospheric pressure. If the glass is installed at different altitudes, this fact must be stated in the order. If the difference is more than 250 m from the altitude of the production plant ISOTHERM s.r.o. which is

  • in Kaplice – 550 meters above sea level
  • in Lázně Toušeň – 177 meters above sea level

Tilting the windows to an inclined or horizontal position significantly worsens the heat transfer coefficient U [W/(m2-K)]. When insulating glass is used in an inclined position, the heat transfer coefficient deteriorates by about 30 % and by about 50 % in the case of horizontal glazing.

The anti-sun glass is used with regard to the selectivity properties of the coating. The type of coating or tint used determines the ability to reflect or absorb solar radiation and thus affects the functional properties of the overall glass. A characteristic feature is the low solar energy transmittance value g [%].

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Maximum glass dimensions

Maximum manufacturable size of insulating glass: 6000 x 3210 mm
Minimum manufacturable size of insulating glass: 350 x 200 mm

Glass above the maximum and below the minimum dimension or above the maximum weight – by agreement with the manufacturer.

For a given insulating glass, the dimension is limited by the size and thickness of the weakest pane according to the static possibilities.

Glass Grids

Glass Partitions

One of the modern requirements for the functionality of insulating glass is the aesthetic and optical division of the insulating glass surface. For which inter-glass partitions are used, which are inserted into the inter-glass space.

This makes the windows easy to clean and the grids are protected from weathering and dirt throughout the lifetime of the insulating glass.

The colour options for the partitions range from RAL shades to imitation wood. This makes it possible to meet almost every customer’s wishes.

Duplexes

Duplexes are inserted into the interglass space to give the optical impression of dividing the glass into multiple insulating panes. At the point of the duplex, window manufacturers glue apparent partitions to the glass surface to reinforce the impression of a transom window.

Ornaments

Ornamental glass is a flat glass, one-sided patterned, which is characterized by more or less visible ornaments on the surface of the glass.
It is used to divide spaces in a decorative way, to reduce transparency, to create stained glass, to glaze windows and doors, etc.
With undesirable transparency while maintaining optimum light transmission, it can also be applied to insulating glass.