Certifications wood doors, wood aluminum window frames and windows

Permeability: CLASS 4
Water tightness: E 900
Wind resistance: C3
Thermal Transmittance: 1.99

Our first certification dates back to 2003 when it was not yet mandatory, why we put the customer first place and the environment.

What is permeability?

And 'the characteristic of a closed window to let air filter in the case of a pressure difference between inside and outside. According to the test method, I'infisso - duly accompanied by a chamber seal is attached to the wall of test equipment that can cause a difference in pressure between the outer face of the casing and the inner one, and measure the volume of 'air dispersed by the system. Depending on the ratio of the volume of air dispersed, the surface opening and the length of the joint opening of the casing is determined by its permeability.

What is waterproof?

And 'the ability to prevent water infiltration even under the action of a pressure differential between inside and outside. The test method specified by the standard and conceptually identical to that on the air permeability, except that, in addition, the outer face of the casing is sprayed with water during the test.

What is wind resistance?

And 'the ability of a frame subjected to violent pressure and / or depressions, such as those caused by the wind to maintain a strain eligible to retain its properties and to safeguard the security of users. The test method is conceptually the same as above, provides that the pressure differential between the inner and outer side present a significantly higher value and time to achieve very fast. In practice, I'infisso is subjected to sudden and violent pressure differences, and then we verify that it has retained its functional characteristics and performance.

What is the thermal transmittance?

The thermal transmittance down the insulating capacity of an element.
As a phenomenon of heat transfer under conditions of steady state (ie where the heat flow and temperatures do not vary over time) transmittance measures the amount of heat per unit time through a structural element of the surface of 1 m² in the presence of a temperature difference of 1 degree between the inside and outside.
The formula takes into account a transmission of heat from a gaseous to another gaseous separated from the flatbed of the test material, radiation, convection and internal conductivity.