Slim possibilities | Features

How vacuum glazing’s thermal performance changes with specification
	achieved to date					achievable
Glass thickness (mm)	3	3	3	3	4	4	2.3	3	4	4
Pillar separation (mm)	20	20	20	20	25	25	31*	40*	54*	54*
Pillar radius (mm)	0.25	0.25	0.25	0.125	0.125	0.125	0.175	0.023	0.31	0.31
Emittance of low-e coating	0	0.21	0.065	0.065	0.065	0.04	0.065	0.065	0.065	0.04
Total conductance air-to-air (W/m²°C)	2.76	1.64	1.25	0.81	0.63	0.54	0.60	0.53	0.47	0.38
*requires tempered glass