Viracon Glass Low-E coating performance

 Viracon glass,part of Apogee group,which contain many facade materials and facade companies:Viracon,Alumicor,Linetec,Sotawall,EFCO,Harmon,Tru Vue,Tubelite,Wausau etc,from architectural glass, aluminium profiles,aluminium coatings,to facade design ,manufacturing installation .Apogee group play an important role in global facade industry.

Established 1949 in North America in,Viracon is able to produce 3 million square meter architectural glass products annually.The coating series include below:

Viracon coating series chart

• VE/VUE series:Single silver ,double silver low-E coatings
• VRE:High reflectance coatings
• VNE: Triple silver low-E coatings.
• VLE: Laminated glass with coatings
• VS/VP: Reflective coatings.

We have to admit the Viracon’s super technology on controlling the visible light reflectance,up to 44% high light reflectance VRN series and neutral 11% reflectance double silver low-E,the products match South America weathers and contribute to the local energy efficient buildings.

Viracon VE series:

VE series is a mixed series including single and double low-E coatings,what’s awesome is,VE142 coating keep only 19% LT% while keeping only 37% LT%.In China you can find almost all matched costings beside VE142 as,low light transmittance always means high light reflectance (25-25%), the lowest coating we can find has 26% LR%,see below chart for more details:

Glass Combination	LT %	LR %-OUT	LR %-IN	Tsol %	Rsol %	U- Summer	U-Winter	SC	SHGC
6 VE142 +12A+6	37	19	14	24	21	1.76	1.77	0.37	0.32
6 MCSE6+12A+6	37	26	12	33	28	1.81	1.81	0.35	0.33
6 VE145 +12A+6	39	7	28	22	22	1.62	1.67	0.34	0.3
6 MS40A+12A+6	39	6	21			1.78	1.77	0.37	0.32
6 VE148 +12A+6	47	17	11	30	30	174	1.76	0.44	0.38
MXSE0151+12A+6	47	16	12			1.8	1.8	0.33	0.37
6 VE12M +12A+6	70	11	12	33	27	1.62	1.67	0.44	0.38
6 MDE80+12A+6	71	10	11	36	21	1.58	1.64	0.48	0.41
6 VE85 +12A+6	76	12	13	47	17	1.74	1.76	0.63	0.55
6 MSE88+12A+6	75	12	12	49	36	1.81	1.81	0.66	0.57

Viracon VNE series:

Same as Guardian SNX,PPG solarban 70/90,Pilkington Suncool Q50/60/70, Viracon VNE series are also compose 2 triple silver low-E coatings.Till now,most glass manufacturers have developed temperable triple silver low-E coating and applied them on world landmark projects,the high efficiency in transfer hot sunlight to cool light makes it priority when designing an LEED facade.

Unlucky,energy-efficient coatings development has reached the limitation.Further 4 layers and even 5 layers silver won’t be appeared in glass coatings because huge technology difficulty ,and also huge processing difficulty when tempering and insulating process.Till now,it’s already the world most leading technology on glass.The combination of low-E and vacuum insulated glass might be the trend in next decades.

Glass Combination	LT %	LR %-OUT	LR %-IN	Tsol %	Rsol %	U- Summer	U-Winter	SC	SHGC
6 VNE153 +12A+6	49	19	21	18	36	1.57	1.57	0.27	0.23
6 MWT60+12A+6C	52	11	13	21	35	1.56	1.64	0.29	0.25
6 VNE163 +12A+6	62	10	10	24	37	1.6	1.65	0.33	0.29
6 MWT70+12A+6C	62	11	13	26	39	1.6	1.65	0.35	0.3

Viracon VRE series:

High light transmittance means relatively low U value,better thermal insulation performance,and lower SC value.Meanwhile ,it’s easier to reflect the surround objects and get clear images on facade itself when facade flatness is guaranteed,high LT% will also protect the interior privacy.Viracon is professional and developed its featured VRE series.

Several points:

1. Do ensure that glass flatness and curtain wall flatness is well controlled,or there’ll be series curtain wall visual distortion.

curtain wall distortion-visual effect

2. Do follow the national regulations on the curtain wall reflectance limit to avoid possible curtain wall light pollution.

light pollution in UK project

3. Morn failed to match VRE130 and VRE138,as these low LT% coatings are designed for hot areas which require the extremely low LT% and high LT%,the condition don’t exist in China so factories don’t plan to develop similar coatings.

Glass Combination	LT %	LR %-OUT	LR %-IN	Tsol %	Rsol %	U- Summer	U-Winter	SC	SHGC
6 VRE130 +12A+6	28	48	15	15	46	1.63	1.68	0.22	0.2
6 VRE138 +12A+6	36	44	21	18	46	1.62	1.67	0.27	0.23
6 MYDE0138+12A+6	34	42	15			1.62	1.68	0.27	0.24
6 VRE143 +12A+6	43	25	19	17	38	1.6	1.65	0.26	0.22
6 MDE50D02+12A+6	46	27	32	27	34	1.54	1.61	0.3	0.26
6 VRE146 +12A+6	43	34	15	23	40	1.64	1.62	0.33	0.29
6 MSE50F+12A+6	42	31	15	25	31	1.67	1.71	0.36	0.32
6 VRE154 +12A+6	47	32	16	25	37	1.66	1.7	0.35	0.31
6 MDE50D+12A+6	47	27	36	27	33	1.57	1.63	0.37	0.32
6 VRE159 +12A+6	53	30	19	28	38	1.65	1.7	0.39	0.34
6 MXDE60+12A+6	55	28	24			1.59	1.65	0.37	0.33
6 VRE165 +12A+6	59	27	20	31	34	1.58	1.63	0.43	0.37
6 MDE60B+12A+6C	58	17	19	29	27	1.56	1.62	0.4	0.34

Viracon VUE series:

The biggest feature of VUE series is low light reflectance as well,compared with competitors similar products,Viracon always keep the LT very well.Below chart shows that Morn’s double silver low-E coatings LT is higher than Viracon under same LT condition.

Glass Combination	LT %	LR %-OUT	LR %-IN	Tsol %	Rsol %	U- Summer	U-Winter	SC	SHGC
6 VUE130 +12A+6	31	19	20	12	27	1.58	1.64	0.21	0.18
6 VUE140 +12A+6	40	15	15	16	27	1.59	1.65	0.25	0.22
6 MJDE45+12A+6	40	25	15	17	39	1.63	1.68	0.24	0.21
6 VUE150 +12A+6	48	11	11	20	26	1.59	1.65	0.3	0.27
6 MXDE412A+6	46	17	20			1.59	1.65	0.33	0.29

Viracon VP and VLE series

VP series include VP13,18,22 ,Specialized designed for areas require extremely low LT%.

VLE series is laminated glass of clear glass and low-E coatings -VRE159 and VLE170.

Glass Combination	LT %	LR %-OUT	LR %-IN	Tsol %	Rsol %	U- Summer	U-Winter	SC	SHGC
6 V12	14	29	47	12	24	4.23	4.87	0.33	0.29
6 V18	18	24	42	16	20	4.38	5.01	0.38	0.33
6 V22	24	18	35	21	15	4.62	5.22	0.45	0.39
6 VLE157	53	32	24	28	38	5	5.52	0.45	0.39
6 VLE170	68	13	13	31	30	5.41	4.91	0.5	0.43

Conclusion：

Viracon has its unique advantage on adjusting the light reflectance and this also makes it different from other competitors,even though these special products are not suitable for everywhere,but there always some customers prefer products to take every measures to create unique facade appearance and energy purpose.

Download Viracon complete brochure here:Viracon-ProductGuide

Working With China top low-E coating manufacturers-Jinjing Group,XYG,TG, Morn now is able to supply low-E coated insulated glass that matching the world famous brands,with much lower costs and equivalent quality&excellent service,we’re confidence our joining will help finishing your great building with costs saving and happy work.

Kindly contact us if any insulated glass are required.

Download this article here:LOW-E coating performance-Viracon