
Demountable Fixed Panel
Series 55: High security framing system providing significant intruder resistance, blast mitigation and protection against hand guns.
Ideal for large windows which require additional security, whilst retaining the option for very occasional access for cleaning and maintenance. Frames can be coupled together.
Ideal for large windows which require additional security, whilst retaining the option for very occasional access for cleaning and maintenance. Frames can be coupled together.

Series 55 Security
A heavy duty demountable fixed system offering very high levels of security suited to control rooms, secure laboratories and partitions. The glazed panels, which can be large, are attached with machine screws permitting occasional access for maintenance.
Recommended maximum frame sizes (mm)
H | W | ![]() |
3600 | 1800 | Link to BIM data |
Glazing Range
9.5 mm to 22 mmFrame Finishes
Standard white (HIPCA semi-gloss). Any standard powder paint, wood grain or anodised finish to order.- Warmer A Series 55 window will reduce heat loss by up to 50% using standard glass and up to 65% with a thermally efficient glass (low-E). A high performance brush seal and perimeter mastic seals will almost eliminate drafts and ensure much greater comfort near the window. The effectiveness of the insulation is measured by U-values, the lower the figure the better the insulation.
INSULATION (U-VALUE) CALCULATED IN COMBINATION WITH A PRIMARY WINDOW AT BRFC SAMPLE SIZE OF 1430 X 1230MM
GLASS METAL PRIMARY WINDOW TIMBER PRIMARY WINDOW 9.5 - 12.04mm 2.89 W/m2K 2.61 W/m2K 9.5 - 12.04mm low-E 1.93 W/m2K 1.80 W/m2K NOISE INSULATION MEASURED IN COMBINATION WITH A PRIMARY WINDOW
GLASS 50MM CAVITY 100MM CAVITY 200MM CAVITY 9.5mm 41 dB (Rw) 45 dB (Rw) 47 dB (Rw) 11.3 - 15.04mm 42 dB (Rw) 46 dB (Rw) 48 dB (Rw) TEST STANDARD INTRUDER LPS 1175 SR1, SR2 and SR3 BLAST ISO 16933 EXV 25 and EXV 15 BALLISTIC EN 1522/1523 FB4 FIRE N/A Styles available
Section diagrams
Ironmongery not applicable to this product