Measurement	Window description	Type of frame/sash	Thermal glazing composition	Notes	Weight of sample	STC rating
Manufacturer					Glazing thickness
1 Thermalite	Thermopane installed directly in test opening and sealed at perimeter	No frame	Glass 3 mm Airspace 19 mm Glass 3 mm	Standard thermopane used in Aluminum casement windows (window no 8)	62 lbs 24,5 mm	27
2 Thermalite	Thermopane installed directly in test opening and sealed at perimeter	No frame No sash	Glass 3 mm Airspace 16 mm Glass 3 mm	Standard thermopane used in wood and PVC casement windows (windows no 9 and 10)	62 lbs 21,5 mm	26
3, 3A, 3B Thermalite	Thermopane installed directly in test opening and sealed at perimeter	No frame No sash	Glass 3 mm Airspace 13 mm Glass 3 mm	Standard thermopane used in pine sash windows (window no 16)	62 lbs 19 mm	3 = 26 3A = 25 3B = 25
4 Thermalite	Thermopane installed directly in test opening and sealed at perimeter	No frame No sash	Glass 3 mm Airspace 16 mm Glass 6 mm	Thermopane designed to enhance the acoustical performance of aluminum windows (window no 11)	91 lbs 24,5 mm	33
5 Thermalite	Thermopane installed directly in test opening and sealed at perimeter	No frame No sash	Glass 3 mm Airspace 13 mm Glass 6 mm	Thermopane designed to enhance the acoustical performance of wood or PVC windows (windows no 12 and 13)	91 lbs 22 mm	31
6 Thermalite	Thermopane installed directly in test opening and sealed at perimeter	No frame No sash	Glass 6 mm Airspace 9 mm Glass 8 mm	Thermopane designed to maximize the acoustical performance of aluminum, wood and PVC windows while maintaining a thin airspace between the glass lights	146 lbs 23 mm	34
7 Thermalite	Thermopane installed directly in test opening and sealed at perimeter	No frame No sash	Glass 5 mm Airspace 38 mm Glass 5 mm	Glazing composition destined to a sealed window or to the most economical sliding window (window no 15)	104 lbs 48 mm	32

Measurement	Window description	Type of frame/sash	Thermal glazing composition	Notes	Weight of sample	STC rating	Net Price
Manufacturer					Glazing thickness
8 Wilton	Casement window; 2 sashes (1 fixed, 1 operable)	Aluminum sash and frame	Glass 3 mm Airspace 19 mm Glass 3 mm	Standard aluminum casement window	103 lbs 25 mm	30	456$
9 Melco	Casement window; 2 sashes (1 fixed, 1 operable)	PVC sash; wood frame covered with PVC	Glass 3 mm Airspace 16 mm Glass 3 mm	Standard PVC casement window	98 lbs 22 mm	28	334$
10 Polar	Casement window; 2 sashes (1 fixed, 1 operable)	Wood sash and frame	Glass 3 mm Airspace 16 mm Glass 3 mm	Standard wood casement window	92 lbs 22 mm	29	295$
11 Wilton	Casement window; 2 sashes (1 fixed, 1 operable)	Aluminum sash and frame	Glass 3 mm Airspace 16 mm Glass 6 mm	Superior sound isolating glazing in standard aluminum sash	124 lbs 25 mm	35	514$
12 Melco	Casement window; 2 sashes (1 fixed, 1 operable)	PVC sash; wood frame covered with PVC	Glass 3 mm Airspace 13 mm Glass 6 mm	Superior sound isolating glazing in standard PVC sash	118 lbs 22 mm	33	355$
13 Polar	Casement window; 2 sashes (1 fixed, 1 operable)	Wood sash and frame	Glass 3 mm Airspace 13 mm Glass 6 mm	Superior sound isolating glazing wood sash	112 lbs 22 mm	34	320$

Measurement	Window description	Type of frame/sash	Thermal glazing composition	Notes	Weight of sample	STC rating	Net Price
Manufacturer					Glazing thickness
14 Wilton	Sliding window; 4 sashes sliding horizontally	Aluminum sash and frame	Glass 3 mm Airspace 108 mm Glass 3 mm	Standard aluminum sliding window	95 lbs 114 mm	41	268$
15 Robert	Sliding window; 4 sashes sliding horizontally	Sash and frame made out of vinyl covered pine	Glass 5 mm Airspace 34 mm Glass 5 mm	The most economical 4 sash sliding windows	120 lbs 44 mm	32	177$
16 Robert	Sash window; 2 sashes sliding vertically	Sash and frame made out of vinyl covered pine	Glass 3 mm Airspace 13 mm Glass 3 mm	The most economical window	90 lbs 19 mm	27	149$