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

Quieter A Series 55 window set 100mm apart from the existing window reduces noise levels by 45dB (decibels) with higher figures achieved using thicker glass. This can achieve World Health Organisation guidelines for quiet living and working environments even in quite challenging noise environments.

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)

 Safer The Series 55 Demountable Fixed window has considerable inbuilt strengths. Manual attack tests have been conducted by the Loss Prevention Certification Board using a range of tools to attack both frame and glass over defined periods of time. Resistance against the effects of explosives has been assessed on a specialist Blast Range using a simulated car bomb and it has also undergone ballistic testing. SECURITY PERFORMANCE (MAXIMUM ACHIEVABLE, CONTACT SELECTAGLAZE FOR SPECIFICATION REQUIREMENTS)

	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