Super High-Performance R5-Plus Windows Performance Data

Energy Guard Triple Pane Insulated Glass – available in Classic Series and Thermo-Fit for windows listed below.

The lower the U-Value and the higher the R-Value, the better the window is at reducing heat loss.

Energy Guard PLUS Triple Insulated Glass (ENERGY STAR Most Efficient)

Triple insulated glass with high-performance LoĒ² 272/Argon on two glass surfaces

Window Style	U-Value	R-Value	Solar Heat Gain no/Grids	Solar Heat Gain w/Grids	Visible Light no/Grids	Visible Light w/Grids	Condensation Resistance	U.S.Energy Star Zones no/Grids	U.S. Energy Star Zones w/Grids	U.S. Zones Energy Star Most Efficient no/Grid*	U.S. Zones Energy Star Most Efficient w/Grids*
Casement	.17	5.88	.24	.22	.38	.34	76	N, NC	All	N, NC	All
Horizontal Slider	.25	4.00	.28	*	.45	*	63	NC	*	-	*
Single-Hung	.26	3.85	.28	*	.45	*	62	-	*	-	*
Double-Hung	.27	3.70	.27	*	.43	*	62	-	*	-	*
Direct-Set Picture Window	.15	6.67	.31	.28	.51	.46	74	N, NC	N, NC	N, NC	N, NC
Fixed Casement Picture Window	.16	6.25	.28	.25	.45	.40	75	N, NC	N, NC	N, NC	N, NC
Awning	.17	5.88	.24	.22	.38	.34	76	N, NC	All	N, NC	All

*Not available.

Energy Guard Triple Insulated Glass (ENERGY STAR Most Efficient)

Triple insulated glass with high-performance LoĒ³ 366/Argon on two glass surfaces

Window Style	U-Value	R-Value	Solar Heat Gain no/Grids	Solar Heat Gain w/Grids	Visible Light no/Grids	Visible Light w/Grids	Condensation Resistance	U.S.Energy Star Zones no/Grids	U.S. Energy Star Zones w/Grids	U.S. Zones Energy Star Most Efficient no/Grid*	U.S. Zones Energy Star Most Efficient w/Grids*
Casement	.17	5.88	.16	.15	.31	.28	77	NC, SC, S	NC, SC, S	NC, SC, S	NC, SC, S
Horizontal Slider	.25	4.00	.19	*	.37	*	63	NC, SC, S	*	-	*
Single-Hung	.25	4.00	.19	*	.37	*	62	NC, SC, S	*	-	*
Double-Hung	.26	3.85	.18	*	.35	*	62	SC, S	*	-	*
Direct-Set Picture Window	.15	6.67	.21	.19	.41	.37	75	All	All	All	NC, SC, S
Fixed Casement Picture Window	.16	6.25	.19	.17	.36	.32	76	All	All	NC, SC, S	NC, SC, S
Awning	.17	5.88	.16	.15	.31	.28	76	NC, SC, S	NC, SC, S	NC, SC, S	NC, SC, S

*Not available.

Northern Excellence HSHG Triple Insulated Glass (ENERGY STAR Most Efficient)

Triple insulated glass with high-performance LoĒ 180/Argon on two glass surfaces

Window Style	U-Value	R-Value	Solar Heat Gain no/Grids	Solar Heat Gain w/Grids	Visible Light no/Grids	Visible Light w/Grids	Condensation Resistance	U.S.Energy Star Zones no/Grids	U.S. Energy Star Zones w/Grids	U.S. Zones Energy Star Most Efficient no/Grid*	U.S. Zones Energy Star Most Efficient w/Grids*
Casement	.18	5.56	.38	.34	.46	.42	76	N, NC	N, NC	NC	N, NC
Horizontal Slider	.26	3.85	.45	*	.55	*	63	N	*	-	*
Single-Hung	.26	3.85	.44	*	.55	*	62	N	*	-	*
Double-Hung	.25	4.00	.42	*	.52	*	61	-	*	-	*
Direct-Set Picture Window	.16	6.25	.50	.45	.62	.56	74	N	N	N	N
Fixed Casement Picture Window	.17	5.88	.44	.40	.54	.49	74	N	N, NC	NC	N, NC
Awning	.18	5.56	.38	.34	.46	.42	74	N, NC	N, NC	NC	N, NC

*Not available.
All tests conform to NFRC 100-2010, NFRC 200-2010, NFRC 400-2010, NFRC 500.

The windows and doors described herein meets or exceeds the AAMA/WDMA/CSA101/I.S.2/A440.

Ratings depend on size tested. Our products are tested for performance regularly. Test results subject to change.