The addition of Argon gas
into an insulating unit that already contains Pilkington 'K' glass
will improve the thermal efficiency (reducing the U-Value)
by an additional 16% or 20% with a 16 mm or 20 mm spacer bar.
Argon is the most commonly
used gas fill, due to its excellent thermal performance and cost efficiency
in comparison to other gas fills.
Over 300 companies in the
UK hold BS EN 1279-2 but only 18 companies hold part 3.
City Glass Bradford are one
Even more impressive
is that we are only one of very few in the North of England who hold this
This puts us in the top 6%
manufactures in the UK