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Parameters of windows

Before choosing windows it is worth get to know their basic parameters to know which model of windows comply our expectations. For sure, check the coefficient of thermal insulation, sound insulation, the level of anti-theft features. The following designations:

-Isolation heat is marked as U, the smaller the coefficient of the windows will better protect the house against heat loss,

-Good acoustic insulation will have window acoustic insulation 30 dB indicates it is as Rw,

– About whether the windows are good burglary protection evidenced marking P defining the class of windows, the single-family home are enough window P4.