XIR

Southwall's XIR® Laminated products encapsulate XIR "heat rejecting" film between two layers of PVB and glass. The finished product has a low-reflectance appearance, allowing greater than 70% visible light transmittance while reflecting ~50% of the invisible heat. Glazed monolithically or combined into sealed insulating glass units, XIR film can be laminated with annealed, heat strengthened, or tempered clear glass, or combined with tinted PVB and tinted glass.

XIR Laminated glass improves monolithic laminated glass solar control performance by almost 50% with minimal impact on view and aesthetics. XIR laminated glass enables designers to create solar control solutions incorporating curved glass and enhances the performance of point fixed applications.

Applications
Skylights, Solariums, Large glass facades, Panoramic views, Control towers, Sports complexes, Libraries/museums, Medical facilities, Point-fixed glazing, Storefronts, Atriums

View the XIR selector chart below

Catfish Town, Baton Rouge, Louisiana. High performance laminated glass by GlasPro.

XIR Laminated Monolithic
XIR Laminated Monolithic can be used in vertical, sloped, or overhead glazing applications. From curtain wall (captured or structurally glazed) to monumental skylights, this technology offers expanded choices of energy-efficient glazing. XIR Laminated Monolithic can be fabricated in nearly all flat or architecturally curved configurations. By using tinted glass as the inner lite, the desire for solar performance (day lighting and SHGC ratio) can be adjusted to meet your desired specifications.

Benefits

72% light transmission – improves day lighting
Solar Heat Gain Coefficient (SHGC) as low as 0.41 w/clear glass–
lower HVAC system and operating costs, increased comfort
8% visible reflectance – improves transparency
Blocks 99.5% UV rays – reduces interior fading
Uniform appearance over both flat and curved surfaces –
not possible with coated glass
Reduces outdoor noise

XIR Laminated IGU
A pane of XIR laminated glass and a second pane of glass are bonded by a spacer and separated by a sealed air space. While selectively blocking UV and near-IR, an XIR laminated IGU also acts as an insulator that provides comfortable temperatures in both summer and winter.

Benefits

High neutrality - maximum clarity
60% light transmission - improves day lighting
Solar Heat Gain Coefficient (SHGC) as low as 0.30 w/clear glass-
lower HVAC system and operating costs, increased comfort
12% visible reflectance - lower glare & higher visibility
Low heat absorption - can eliminate costly tempering
U-value as low as 0.35 - high energy savings
Uniform appearance over both flat and curved surfaces

(Full chart available on the desktop version of our website)

Product / Glass Type	Unit Thickness		Transmittance		Reflectance			Winter Nighttime U-Value & K-Value		Shading Coeffic.	Solar Hear Gain Coeffic.	Relative Heat Gain		Ultraviolet Transmittance
			Daylight Total	Solar Total	Daylight		Solar					Relative Heat Gain
			Daylight Total	Solar Total	Ext.	Int.	Ext.					BTUs/Hr/Ft	W/m
	IP	SI	%	%	%	%	%	IP	SI		(SHGC)	IP	SI	%
XIR Laminated 72-47
Clear Lami (No XIR)	1/4"	6	89	76	8	8	7	1.07	6.10	0.93	0.80	201	634	< 1.0 %
Clear Lami (No XIR)	1/2"	13	83	58	7	7	6	1.01	5.75	0.78	0.67	170	537	< 1.0 %
Clear Low-iron	1/4"	6	75	41	8	8	29	1.07	6.05	0.57	0.49	129	407	0.02 %
Clear Low-iron	1/2"	13	75	40	8	8	27	1.01	5.74	0.56	0.48	126	399	0.02 %
Clear	1/4"	9	72	37	8	8	24	1.07	6.05	0.55	0.47	125	394	0.02 %
Clear	1/2"	13	68	33	8	8	33	1.01	5.74	0.53	0.45	119	377	0.02 %
Pyrolytic Low-e Clear	1/4"	9	68	34	9	10	25	0.75	4.24	0.48	0.41	106	333	0.02 %
Pyrolytic Low-e Clear	1/2"	13	65	32	9	10	20	0.69	3.90	0.46	0.40	102	322	0.02 %
Sierra Green	1/4"	6	67	31	7	7	23	1.07	6.05	0.51	0.44	116	367	0.02 %
Sierra Green	1/2"	13	60	25	7	7	18	1.01	5.74	0.46	0.40	107	338	0.01 %
Moss Green	1/4"	6	62	27	7	7	23	1.07	6.05	0.47	0.41	110	346	0.01 %
Moss Green	1/2"	13	53	20	7	6	17	1.01	5.74	0.43	0.37	100	315	0.01 %
Tahoe Blue	1/4"	6	63	27	7	7	23	1.07	6.05	0.47	0.41	109	345	0.02 %
Tahoe Blue	1/2"	13	56	22	7	7	17	1.01	5.74	0.44	0.38	103	325	0.02 %
Pacific Blue	1/2"	13	44	22	6	6	17	1.01	5.74	0.44	0.38	102	323	0.01 %
Mojave Bronze	1/4"	6	54	29	7	6	22	1.07	6.05	0.49	0.42	113	356	0.02 %
Mojave Bronze	1/2"	13	42	21	6	6	17	1.01	5.74	0.43	0.37	101	317	0.01 %
Carmel Grey	1/4"	6	49	27	7	6	22	1.07	6.05	0.47	0.41	109	345	0.02 %
Carmel Grey	1/2"	13	35	18	6	5	17	1.01	5.74	0.41	0.35	96	304	0.01 %
Graylite	1/2"	13	11	8	5	4	16	1.01	5.74	0.33	0.28	81	254	0.01 %
Product / Glass Type	Unit Thickness		Transmittance		Reflectance			Winter Nighttime U-Value & K-Value		Shading Coeffic.	Solar Hear Gain Coeffic.	Relative Heat Gain		Ultraviolet Transmittance
			Daylight Total	Solar Total	Daylight		Solar					Relative Heat Gain
			Daylight Total	Solar Total	Ext.	Int.	Ext.					BTUs/Hr/Ft	W/m
	IP	SI	%	%	%	%	%	IP	SI		(SHGC)	IP	SI	%
XIR Laminated IG with XIR 72-47 1/4" used as the outsite lite, 1/2" airspace, and 1/4" monolithic clear lite inside.
Clear Lami (No XIR)	1"	25	79	60	15	15	12	0.48	2.73	0.80	0.69	167	528	< 1.0 %
Clear Low-iron	1"	25	69	38	13	15	31	0.48	2.72	0.49	0.42	106	334	0.02 %
Clear	1"	25	64	31	13	15	26	0.48	2.72	0.45	0.38	97	306	0.02 %
Pyrolytic Low-e Clear	1"	25	60	29	13	17	26	0.35	1.97	0.40	0.35	86	271	0.02 %
Clear with Soft-coat Low-e (#3)	1"	25	56	24	11	11	26	0.29	1.66	0.38	0.33	81	256	0.01 %
Sierra Green	1"	25	60	27	11	14	25	0.48	2.72	0.40	0.34	88	277	0.01 %
Moss Green	1"	25	55	23	11	14	24	0.48	2.72	0.36	0.31	81	255	0.01 %
Tahoe Blue	1"	25	57	23	10	14	24	0.48	2.72	0.36	0.31	81	255	0.02 %
Mojave Bronze	1"	25	48	24	9	13	23	0.48	2.72	0.38	0.33	84	264	0.01 %
Carmel Gray	1"	25	43	22	9	13	23	0.48	2.72	0.36	0.31	80	253	0.02 %