U-values media library

The U-value of a sealed unit is determined by the elements that are used to make up the sealed unit. The lower the U-value the better insulation performance of the unit, which is why our customers often want lower U-values, because they are proof of better performing products.

Just because a unit is triple glazed, it doesn’t necessarily mean that it will have a lower U-value when compared to double glazing.  The U-value is determined by the countless combinations of elements that go to make up a sealed unit.  We’ve included some examples to show you this below.

Click on ‘Double Glazed‘ or ‘Triple Glazed‘ tabs below to see examples of those units. The example specifications are ranked firstly by unit size and then by U-value.

Double Glazing U-value data sheets

U-Value Table 03 2021

Planitherm Total+ data sheets

Planitherm One data sheets

Triple Glazing U-value data sheets

Triple Glazed data sheets ARGON (Ar) gas filled

Planitherm Total+ (PT+)                                                       Planitherm One (P1)

Triple Glazing data sheets, ARGON gas filled with 6.4 & 6.8 clear laminate outer pane

Triple Glazing data sheets, KRYPTON (Kr)gas filled

Triple Glazing data sheets, KRYPTON gas filled with 6.4 & 6.8 clear laminate outer pane