Texas Windows Initiative (TWI), Slide 24

Typical Center-of-Glass Total Performance Comparison

Product	Emissivity	U-factor	SHGC	VT	Tuv	Tdw
Clear Single	0.84	1.11	0.86	0.90	0.71	0.72
Bronze Single	0.84	1.11	0.73	0.68	0.38	0.43
Clear/Clear	0.84	0.49	0.76	0.81	0.56	0.59
Bronze/Clear	0.84	0.49	0.62	0.62	0.32	0.38
SS Green/Clear	0.84	0.49	0.51	0.69	0.23	0.34
Clear/High Solar Pyrolytic Low-E/Clear	0.15	0.34	0.70	0.75	0.45	0.50
Low Solar Pyrolytic Low-E/Clear	0.17	0.34	0.39	0.44	0.31	0.34
Low Solar Sputter Low-E/Clear	0.04	0.30	0.41	0.72	0.16	0.33
Laminated/Clear	0.84	0.49	0.78	0.82	0.01	0.30
Clear/Film/Clear	0.05	0.31	0.36	0.62	0.01	0.28

For Texas - look for low SHGC, high visible light, low U-factor, low Tdw (fading)