The Advanced System was designed to accept a deeper double glazed unit over the Heritage System. A decorative bronze beading secures the glass in place, resulting in a particularly attractive profile when viewed from the outside.
The Advanced System can be fitted with either a traditional or contemporary shaped bead. This choice allows greater compatibility to the architectural design of your project.
Slim Frame Profile |
Traditional Bead Option |
Contemporary Bead Option |
Double Glazing (18mm) |
Side Hung Unit |
Top Hung Unit |
Curved Windows |
Rebated Leg Profile |
Equal Leg Profile |
Vertical and/or Horizontal Glazing Bars |
Leaded or Plain Units |
Optional Trickle Ventilation |
Hinge and bead on outside |
Security Options Available |
The tests below are carried out on side-hung outward opening windows measuring 1650mm x 600mm and are tested excluding any additional security features.
BS 6375 Part 1: 2009 (performance of windows and doors)
Wind | 2000 Pa Class A5 |
Water | 250 Pa Class 6A |
Air | 600 Pa Class 4 |
Exposure Category | 2000 |
EN14351 Part 1 Clause 4.8
LOAD BEARING CAPACITY OF SAFETY DEVICE (Wire Restrictor) TESTED TO PRINCIPLIES OF EN14609:2004 | PASS |
Side Hung Casement
Max O/a Width | 650mm |
Min O/A Width | 300mm |
Max O/A Height | 1700mm |
Area of side hung casement must not exceed 1.105m2.
Casements over 1100mm high will require 2 handles.
Where width is greater than height, casement sash must be top hung.
Top Hung Casement
Max O/a Width | 1200mm |
Min O/A Width | 300mm |
Max O/A Height | 500mm |
Min O/A Height | 300mm |
Fixed Lights
Max O/A Width | 1200mm |
Max O/A Height | 2400mm |
The inclusion of glazing bars, trickle ventilation, opaque glazing and abutment details may alter performance data and design limits.
Please contact our sales team to discuss any requirements outside of the standard size limits detailed above.
U-value performance based on an 18mm double glazed unit made up of 4mm float/10mm 90% Krypton filled cavity/4mm Planitherm total + with warm edge spacers.
Fixed casement overall value | 1.6W/m2K |
Opening casement overall value | 1.8W/m2K |
Centre pane value | 1.1W/m2K |
When incorporating a genuine Georgian bar add 0.4 to the U-value.
U-values calculated in accordance with BS EN iso 10077-1:2006 based upon a single fixed light sample 1230mm x 1480mm and a single opening light sample 1230mm x 1480mm. Inclusion of glaze bars, trickle ventilation or equal leg will affect performance.
Tested with scroll handles, plain back plates, manor stays and Part Q casement locks. Below test carried out on windows measuring maximum 650mm x 1700mm.
Side opening and fixed casements. | Pass |