Glazing

Product description

Aludor manufactures energy frames and insulating frames, aluminum and synthetic pvc for the whole of Crete, from Chania and Rethymnon to Heraklion and Lasithi (Agios Nikolaos, Sitia, Ierapetra)

The main purpose of the architectural pane has been for 2,000 years, its contribution to the improvement of the living conditions and the temperature comfort of a space. The glass pane of a window has been used over the years as a means of filling the openings of a building in order to protect its inhabitants from the weather (air, rain, cold, heat, etc.) which, unlike all the materials used Until then, allows natural light to come in.Of course, the evolution of technology has contributed to the continuous improvement of the optical characteristics of the glass panes, while new types of glazing have been invented and passed into industrial production with additional properties that the plain white glasses did not have. These are glass panes whose mass has been added to color or the surface of which has been coated with thinly invisible metal oxide layers in order to change their light transmission index, that is, the amount of natural light they allow to pass through.

Coating Methods: The properties of energy glasses are the result of the coating of their surface with finely invisible layers of metallic oxides capable of reflecting much of the incident solar radiation by drastically reducing the thermal gain. The basic principle of producing reflective glasses is the coating of one surface with thin layers of oxides of various metals and metal salts, with which the glass acquires increased reflective properties on the one hand and various colors on the other.One of the most commonly used metals is silver, mainly due to the low radiation coefficient of heat. The reflective coating of silver (the other metal) is combined with other pre-coatings of metal oxides in order to achieve the desired reflectivity coefficient and the chromatic tint of the glass.

Depending on the coating method, the coated glass panels are divided into two categories:

Hard-coated energy glass

U value up to 1,5 with use of ARGON ( on a 4/15/4 double glazing with argon gas ). It refers to a glass whose surface has been coated by dipping or chemical spraying. The chemical spraying method is also known as pyrolytic method. The spraying takes place at temperatures of 500 ° C during the production process, in order, therefore they are also called on line.

The main features and benefits of hard-coated glasses are:

Completely flat and parallel surface.
Environmental impacts (the production and use of low-emission glazing leads to significantly lower energy consumption and reduction of CO2 emissions).
High Performance Low Emissions Glass (High Performance Low Emission).
Control of heat transfer between indoor and outdoor surplus - Thermal Insulation.
Solar Control. Combination of thermal insulation and solar control and minimization of heating-cooling costs (ideal choice for hot climates).
Color and Reflection - High Aesthetics.
Visual Comfort.
Minimize artificial lighting.
Acoustic comfort.

Things we should notice

The main advantage of the method is that the coating applied to the surface of the glass is resistant to mechanical stress, which enables us to place the glasses with the coated surface at position 1 in which the glass renders its color properties for which we have chosen.

Soft-coated energy glass

U value up to 1.1 using ARGON (on a 4/16/4 double glazing with Argon gas). It refers to glass whose surface has been coated by natural spraying. Physical spraying is achieved by the Magnetron method, which is independent of the glass production process, and is called off line.

Things we should notice:

Difficult to process as it requires special handling.
It presupposes the existence of special machinery.
Can not be stored in large quantities for a long time because it has a maturity date (if not used in double glazing).

Their main advantages and disadvantages are:

They offer the lowest U price available on the market.
High transmission of visible light.
It reduces UV radiation by as much as 70% compared to the plain glass.
Optical transparency without coloring

Information

Soundproofing

Application guidelines

Installation, sound-insulating glazing (thickness, cross-section and elasticity of glass)
Glazing with different cross-section on glazing both inside and outside.
Large glazing gap (attention from glass gap 15 to 20 we have the best effect in terms of sound insulation and thermal insulation, after gap 20 we have better sound insulation but lose heat insulation).
Triple glazing with internal membrane (0.38 mm) does not significantly improve sound insulation, as well as burglary security, but only for human protection.
Sound-proofing gases are no longer used for environmental reasons.

Table 1. Type of glazing and sound insulation offered in the frame

Glass type	Rw (db)
Simple 4 mm	31
Simple 6 mm	32
Simple 10 mm	36
Simple 12 mm	37
Simple 4-12-4 mm	31
Simple 6-12-6 mm	33
Simple 10-12-6 mm	38
Simple 12-12-6 mm	39

Table 1 gives the noise reduction coefficients (Rw) for common single glazing and for common double glazing with a 12 mm gap (Pilkingkton). The higher the Rw factor, the greater the noise reduction is achieved, the better sound insulation.

Unlike thermal insulation, the sound insulation achieved does not depend on whether the glass is double, triple, etc., but on the thickness of the glass. Increasing the thickness of the glass improves the sound insulation. For dwellings built near airports where our noise requirements are above 40 dB, double windows should be used. In practice this is achieved by double glazing of single glazing which is at least 120 mm (12 cm) apart.

Coefficient of Thermal Permeability

Classification Ug

The Ug factor determines the thermal permeability of the glass.

There are 3 Ug processes for glazing:

Table ΕΝ ISO 10077-1
Calculation EN 673 ( through notified organization )
Measurement ΕΝ 674 ( through notified organization )

The most common method is the calculation through specially certified calculation programs.

THERMAL COEFFICIENT U: W/m2k

GLASS COMBINATION	W/m2k
K glass 4 / 12 (Argon) / 4	1,6
K glass 4 / 12 / 4	1,9
K glass 4 / 15 (Argon) / 4	1,5
K glass 4 / 15 / 4	1,7
K glass 4 / 12 (Argon) / 6,4 optilam clear	1,6
K glass 4 / 15 (Argon) / 6,4 optilam clear	1,5
K glass 4 / 12 (Argon) / 6,4 optilam clear	1,7
K glass 4 / 12 (Argon) / 6,4 optilam clear	1,9
Solar-E 6 / 15 / 4	1,7
Solar-E 6 / 15 (Argon) / 4	1,5
Solar-E 6 / 12 / 4	1,6
Solar-E 6 / 12 / 6,4 optilam clear	1,9
Solar-E 6 / 12 (Argon) / 6,4 optilam clear	1,6
Solar-E 6 / 15 / 6,4 optilam clear	1,7
Solar-E 6 / 15 (Argon) / 6,4 optilam clear	1,5
Optilam Clear 6,4 / 12 (Argon) / 6,4 optilam clear	2,7
Optilam Clear 6,4 / 12 / 6,4 optilam clear	2,8
Optilam Clear 6,4 / 15 / 6,4 optilam clear	2,7
Optilam Clear 6,4 / 15 (Argon) / 6,4 optilam clear	2,6
Optilam clear 6,4 / 15 / 5	2,7
Optilam clear 6,4 / 15 (Argon) / 5	2,6
Optilam clear 6,4 / 15 (Argon) / 4	2,6
Optilam clear 6,4 / 15 / 4	2,7
Optilam clear 6,4 / 12 / 5	2,8
Optilam clear 6,4 / 12 (Argon) / 5	2,7
Optilam clear 6,4 / 12 (Argon) / 4	2,7
Optilam clear 6,4 / 12 / 4	2,8
5 / 15 (Argon) / 4	2,6
5 / 15 / 4	2,7
5 / 12 (Argon) / 4	2,7
5 / 12 / 4	2,9

OPTILAM CLEAR 6,4 = TRIPLEX (3+3)