Italiano  English  Россию  







Certification


The CE mark is placed o all products manufactured by ALBERTI F.LLI s.n.c. and certification of conformity is issued according to UNI EN 14351-1 and UNI EN 13659 regulations, in application of the 89/106/CE European directive.
The CE mark is one of the instruments for regulation of the market introduced at European level to assure consumers that certain product requirements are respected.
ALBERTI F.LLI s.n.c.has completed and passed all the tests undertaken at a specific wood laboratory and undertakes to carry out constant product development.



Is usually defined as “air permeability” The characteristic of any closed window to leave passing air in case there is a pressure difference between the inside and the outside.
The standard describes the procedure to be used for verification of the air permeability of the frame in the test. The equipment allows to simulate the real case of a pressure difference between the two external and internal faces; measuring the volume of air dispersed under a known pressure difference is so determined and the air permeability the casing under test, the ratio of the volume of air dispersed to the surface and the perimeter opening of the window under examination. The classification is done according to the UNI EN 12207, which provides for four classes of performance: 1, 2, 3, 4.