Wooden Timber Windows, Doors and Stairs
High Quality, Long Life, Bespoke
C2 Flush Thermal Test Data
Barnsdale's are committed to developing thermally efficient windows using traditional profiles and double glazing units. This means that all high performance products do not need a sacrifice in aesthetic appearance. For more information on the thermal performance of our window you can contact us or see our Thermal Performance Specification Guide.
C2 Flush Casement
Window Name |
Glazing Unit |
U-Value |
BFRC Rating |
Certificate |
C2-59 G1 |
G1 |
1.3 |
A |
TBC |
C2-59 G2 |
G2 |
1.3 |
B |
TBC |
C2-59 G3 |
G3 |
1.5 |
C |
TBC |
C2-59 G4 |
G4 |
1.7 |
D |
TBC |
We now offer as standard a full U-Value report with every order, which details the U value of each window and its frontal area, simplifying the data required to calculate whole building energy efficiency.
Glazing Unit Descriptions
To simplify the description required by the British Fenestration Rating Council (BFRC) for accredited windows, we have given a code for the glazing units that we use as follows:
Name |
Inside Pane |
Outside Pane |
Spacer Bar |
Gas |
G1 |
Softcoat |
Low Iron |
Warm Edge |
Argon |
G2 |
Softcoat |
Float |
Warm Edge |
Argon |
G3 |
Softcoat |
Float |
Aluminium |
Argon |
G4 |
Softcoat |
Float |
Aluminium |
Air |