Warmer A Series 30 window will reduce heat loss by up to 50% using standard glass and up to 65% with a thermally efficient glass (low-E). The system is also fitted with a mixture of high performance brush and compression seals to minimise drafts but the design requires single seals at some locations which will reduce efficiency.  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 1430X1230MM

GLASS	METAL PRIMARY WINDOW	TIMBER PRIMARY WINDOW
4 - 6mm	2.86 W/m2K	2.59 W/m2K
4 - 6.8mm low-E	1.91 W/m2K	1.79 W/m2K

Quieter A Series 30 window set 100mm apart from the existing window will reduce noise levels by 42dB (decibels).  In some circumstances this will achieve World Health Organisation guidelines for quiet living and working environments.

NOISE INSULATION MEASURED IN COMBINATION WITH A PRIMARY WINDOW

GLASS	50MM CAVITY	100MM CAVITY	200MM CAVITY
4 - 6.4mm	38 dB (Rw)	42 dB (Rw)	44 dB (Rw)
6.8 mm	39 dB (Rw)	43 dB (Rw)	45 dB (Rw)

 Safer The Series 30 window is not designed for security but when fitted with a simple lock and glazed with laminated glass it will provide limited resistance to forced entry.

SECURITY PERFORMANCE (MAXIMUM ACHIEVABLE, CONTACT SELECTAGLAZE FOR SPECIFICATION REQUIREMENTS)

	TEST STANDARD
INTRUDER	Non certified second barrier to entry
BLAST	N/A
BALLISTIC	N/A
FIRE	N/A