ENERGY STAR Most Efficient 2018 — Casement Style (Awning, Projected, Hopper, Tilt-and-Turn, etc.) Windows

The ENERGY STAR Most Efficient 2018 designation recognizes the most efficient products among those that qualify for the ENERGY STAR program. These vertical slider windows represent the leading edge in energy efficient products this year. Access the full ENERGY STAR Most Efficient certified products list in Excel. See examples of each window type (PDF, 701KB).

Notes on Abbreviations:
CPD	National Fenestration Rating Council
	Certified Products Directory (link is external)
SHGC	Solar Heat Gain Coefficient
PG	Performance Grade

ENERGY STAR Climate Zones (PDF, 2.7 MB)
N	Northern Zone
NC	North-Central Zone
SC	South-Central Zone
S	Southern Zone

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
A Window Inc.
Energy Core	AWN-M-15	0.15–0.20	0.15–0.23	Vinyl	60	N, NC, SC, S
Energy Core Awning	AWN-M-16	0.15–0.20	0.15–0.23	Vinyl	60	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Andersen Corporation
A-Series Casement	AND-N-86	0.20	0.11–0.34	Composite	50	N, NC, SC, S
A-Series Awning	AND-N-87	0.20	0.11–0.33	Composite	50	N, NC, SC, S
A-Series Transom Venting	AND-N-90	0.20	0.12–0.34	Composite	50	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Associated Materials, Inc.
0971	ASO-A-31	0.18–0.20	0.24–0.27	Vinyl	40	N, NC, SC, S
0951	ASO-A-32	0.18–0.20	0.23–0.27	Vinyl	35	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Capitol Glass/Northerm Windows
3800 Awning Triple Glaze	NRW-A-8	0.19	0.16–0.23	Vinyl	60	N, NC, SC, S
3800 Casement Triple Glaze	NRW-A-7	0.19	0.16–0.23	Vinyl	65	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
EnergyWall Windows & Doors
8450 Casement Window	EWW-M-9	0.15–0.20	0.13–0.31	Vinyl	70	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Ideal Window Manufacturing, Inc.
3900 Casement	IAP-M-34	0.19–0.20	0.19–0.21	Vinyl	60	N, NC, SC, S
4000 Awning	IAP-M-33	0.19–0.20	0.19–0.21	Vinyl	60	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Interstate Window & Door Co.
9800 AWN (CompositWood®)	IBM-K-29	0.14–0.20	0.19–0.26	Composite	30	N, NC, SC, S
9400 AWN (Architectural Series)	IBM-K-41	0.14–0.20	0.15–0.27	Composite	30	N, NC, SC, S
8800/6800/440 CS - 8800/6800/440 FX	IBM-K-50	0.15–0.20	0.21–0.27	Vinyl	30	N, NC, SC, S
8800/6800/440 AWN	IBM-K-51	0.15–0.20	0.21–0.27	Vinyl	50	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
JELD-WEN, Inc.
Premium Vinyl (V-4500) Casement	JEL-A-595	0.17–0.20	0.13–0.23	Vinyl	50	N, NC, SC, S
Premium Vinyl (V-4500) Awning	JEL-A-596	0.17–0.20	0.13–0.23	Vinyl	50	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Joyce Manufacturing Co.
Insulator INCA	JMC-K-9	0.18–0.20	0.15–0.16	Vinyl	60	NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Kensington HPP, Inc.
Casement	KHI-M-22	0.16–0.19	0.12–0.34	Vinyl	55	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Kohltech International, Ltd.
Supreme	KOI-A-56	0.17–0.18	0.18–0.39	Vinyl	70	N, NC, SC, S
Supreme	KOI-A-57	0.17–0.18	0.18–0.39	Vinyl	70	N, NC, SC, S
6000 Plus	KOI-A-63	0.17–0.17	0.18–0.20	Vinyl	55	N, NC, SC, S
6000 Plus	KOI-A-64	0.17–0.17	0.18–0.20	Vinyl	40	N, NC, SC, S
Select	KOI-A-66	0.17–0.18	0.19–0.40	Vinyl	70	N, NC, SC, S
Select	KOI-A-67	0.17–0.18	0.19–0.40	Vinyl	30	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Kolbe Windows and Doors
Teutonic™ Tilt-Turn	KKM-K-192	0.20	0.14–0.23	Vinyl	95	N, NC, SC, S
Ultra EP Awning	KKM-K-160	0.20	0.14–0.22	Wood and Clad Wood	85	NC, SC, S
Ultra EP Casement	KKM-K-159	0.20	0.14–0.22	Wood and Clad Wood	80	N, NC, SC, S
Ultra Tilt Turn	KKM-K-188	0.18–0.20	0.13–0.37	Wood and Clad Wood	75	N, NC, SC, S
VistaLuxe Awning	KKM-K-196	0.19–0.20	0.16–0.42	Wood and Clad Wood	50	N, NC, SC, S
VistaLuxe Casement	KKM-K-194	0.19–0.20	0.16–0.42	Wood and Clad Wood	50	N, NC, SC, S
Windquest Casement	KKM-K-224	0.18–0.19	0.14–0.38	Vinyl	50	N, NC, SC, S
Windquest Awning	KKM-K-225	0.18–0.19	0.14–0.38	Vinyl	50	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Marvin Windows and Doors
Integrity Casement	MAR-N-250	0.19–0.20	0.23–0.27	Fiberglass	50	N, NC, SC, S
Integrity Awning	MAR-N-251	0.20–0.20	0.23–0.27	Fiberglass	50	N, NC, SC, S
Wood Magnum Tilt-Turn 4 9/16 Jamb	MAR-N-328	0.18–0.20	0.12–0.36	Wood and Clad Wood	40	N, NC, SC, S
Clad Ultimate Casement	MAR-N-342	0.18–0.20	0.14–0.39	Wood and Clad Wood	50	N, NC, SC, S
Clad Ultimate Awning	MAR-N-343	0.18–0.20	0.13–0.39	Wood and Clad Wood	40	N, NC, SC, S
Wood Ultimate Casement	MAR-N-347	0.17–0.20	0.13–0.38	Wood and Clad Wood	50	N, NC, SC, S
Wood Ultimate Pushout Casement	MAR-N-348	0.18–0.20	0.13–0.38	Wood and Clad Wood	35	N, NC, SC, S
Clad Ultimate Pushout Casement	MAR-N-350	0.19–0.20	0.14–0.25	Wood and Clad Wood	35	N, NC, SC, S
Clad Ultimate Pushout Casement Picture	MAR-N-351	0.16–0.20	0.15–0.45	Wood and Clad Wood	50	N, NC, SC, S
Wood Ultimate Awning	MAR-N-354	0.18–0.20	0.12–0.36	Wood and Clad Wood	50	N, NC, SC, S
Wood Ultimate Casement Round Top Operational/Stationary	MAR-N-356	0.19–0.20	0.13–0.25	Wood and Clad Wood	50	N, NC, SC, S
Clad Ultimate Casement Round Top Operator/Stationary	MAR-N-357	0.19–0.20	0.14–0.25	Wood and Clad Wood	50	N, NC, SC, S
Wood Ultimate Pushout Awning	MAR-N-358	0.18–0.20	0.12–0.37	Wood and Clad Wood	30	N, NC, SC, S
Clad Ultimate Pushout Awning	MAR-N-360	0.19–0.20	0.14–0.25	Wood and Clad Wood	30	N, NC, SC, S
C Ult Casement Poly	MAR-N-437	0.20–0.20	0.14–0.24	Wood and Clad Wood	50	N, NC, SC, S
Wood Magnum Tilt-Turn	MAR-N-44	0.17–0.20	0.13–0.38	Wood and Clad Wood	40	N, NC, SC, S
Clad Magnum Tilt-Turn	MAR-N-45	0.20–0.20	0.14–0.25	Wood and Clad Wood	40	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Mathews Brothers Company
Clara Starrett	MBC-M-46	0.18	0.20–0.22	Vinyl	60	N, NC, SC, S
Clara Starrett	MBC-M-47	0.18	0.20–0.22	Vinyl	60	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
MI Windows and Doors
CertainTeed Casement/ 9000 Series 9770 Vinyl Casement/ Designer Series 1675 Casement	MEI-A-170	0.18–0.18	0.12–0.20	Vinyl	50	NC, SC, S
CertainTeed Awning/ Designer Series 1665 Awning/ 9000 Series 9660 Vinyl Awning	MEI-A-171	0.18–0.18	0.18–0.35	Vinyl	40	N, NC
MI EnergyCore EC147 Casement/ BetterBilt BB147 Casement	MEI-A-174	0.17–0.18	0.20–0.22	Vinyl	45	N, NC, SC, S
MI EnergyCore EC140 Awning/ BetterBilt BB140 Awning	MEI-A-175	0.17–0.18	0.12–0.24	Vinyl	25	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
National Vinyl LLC
Northwind III/ Trustgard/ Destiny/ Northwind Builder Remodeler	NVP-K-17	0.17–0.29	0.20–0.23	Vinyl	25	N, NC, SC, S
Northwind III/ Trustgard/ Destiny/ Northwind Builder Remodeler	NVP-K-18	0.18–0.20	0.21–0.21	Vinyl	50	N, NC, SC, S
Northwind III/ Trustgard/ Destiny/ Northwind Builder Remodeler	NVP-K-19	0.18–0.20	0.21–0.21	Vinyl	50	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
OKNA Windows & Doors
Casement – 700 Series	OKW-K-26	0.16–0.20	0.22–0.24	Vinyl	70	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Pella Corporation
350 Series Casement (Nail Fin)	PEL-N-184	0.17–0.20	0.18–0.20	Vinyl	60	N, NC, SC, S
350 Series Casement (Pocket Frame)	PEL-N-188	0.17–0.20	0.18–0.20	Vinyl	60	N, NC, SC, S
350 Series Awning (Nail Fin)	PEL-N-187	0.17–0.20	0.18–0.20	Vinyl	60	N, NC, SC, S
350 Series Awning (Pocket Frame)	PEL-N-189	0.17–0.20	0.18–0.20	Vinyl	55	N, NC, SC, S
Pella Architect Series Aluminum Clad Fixed Casement with Advanced Low-E Triple IG	PEL-N-1	0.17–0.20	0.21–0.27	Wood and Clad Wood	30	N, NC, SC, S
Pella Architect Series Aluminum Clad Fixed Casement with SunDefense Low-E Triple IG	PEL-N-1	0.17–0.20	0.16–0.20	Wood and Clad Wood	30	N, NC, SC, S
Pella Architect Series Aluminum Clad Fixed Casement with NaturalSun Low-E Triple IG	PEL-N-1	0.17–0.20	0.35–0.44	Wood and Clad Wood	30	N, NC
Pella Architect Series Aluminum Clad Casement with Advanced Low-E Triple IG	PEL-N-11	0.19–0.20	0.21–0.23	Wood and Clad Wood	50	N, NC, SC, S
Pella Architect Series Aluminum Clad Casement with SunDefense Low-E Triple IG	PEL-N-11	0.19–0.20	0.16–0.17	Wood and Clad Wood	50	NC, SC, S
Pella Architect Series Aluminum Clad Casement with NaturalSun Low-E Triple IG	PEL-N-11	0.19–0.20	0.36–0.39	Wood and Clad Wood	50	N, NC
Pella Architect Series Aluminum Clad Casement with NaturalSun Low-E Triple IG	PEL-N-30	0.19–0.20	0.21–0.23	Wood and Clad Wood	50	N, NC, SC, S
Pella Architect Series Aluminum Clad Awning with SunDefense Low-E Triple IG	PEL-N-30	0.19–0.20	0.16–0.17	Wood and Clad Wood	50	NC, SC, S
Pella Architect Series Aluminum Clad Awning with NaturalSun Low-E Triple IG	PEL-N-30	0.19–0.20	0.36–0.39	Wood and Clad Wood	50	N, NC
Pella Architect Series Aluminum Clad Large Awning with Advanced Low-E Triple IG	PEL-N-30	0.19–0.20	0.21–0.23	Wood and Clad Wood	40	N, NC, SC, S
Pella Architect Series Aluminum Clad Large Awning with SunDefense Low-E Triple IG	PEL-N-30	0.19–0.20	0.16–0.17	Wood and Clad Wood	40	NC, SC, S
Pella Architect Series Aluminum Clad Large Awning with NaturalSun Low-E Triple IG	PEL-N-30	0.19–0.20	0.36–0.39	Wood and Clad Wood	40	N, NC
Pella Architect Series Wood Casement with Advanced Low-E Triple IG	PEL-N-39	0.18–0.20	0.19–0.23	Wood and Clad Wood	50	N, NC, SC, S
Pella Architect Series Wood Casement with SunDefense Low-E Triple IG	PEL-N-39	0.17–0.20	0.15–0.17	Wood and Clad Wood	50	NC, SC, S
Pella Architect Series Wood Casement with NaturalSun Low-E Triple IG	PEL-N-39	0.18–0.20	0.32–0.39	Wood and Clad Wood	50	N, NC
Pella Architect Series Wood Awning with Advanced Low-E Triple IG	PEL-N-40	0.18–0.20	0.19–0.23	Wood and Clad Wood	50	N, NC, SC, S
Pella Architect Series Wood Awning with Advanced Low-E Triple IG	PEL-N-40	0.18–0.20	0.15–0.17	Wood and Clad Wood	50	NC, SC, S
Pella Architect Series Wood Awning with NaturalSun Low-E Triple IG	PEL-N-40	0.18–0.20	0.32–0.39	Wood and Clad Wood	50	N, NC
Pella Architect Series Wood Large Awning with Advanced Low-E Triple IG	PEL-N-40	0.18–0.20	0.19–0.23	Wood and Clad Wood	40	N, NC, SC, S
Pella Architect Series Wood Large Awning with SunDefense Low-E Triple IG	PEL-N-40	0.18–0.20	0.15–0.17	Wood and Clad Wood	40	NC, SC, S
Pella Architect Series Wood Large Awning with NaturalSun Low-E Triple IG	PEL-N-40	0.18–0.20	0.32–0.39	Wood and Clad Wood	40	N, NC
Pella Architect Series Wood Fixed Casement with Advanced Low-E Triple IG	PEL-N-41	0.16–0.20	0.21–0.27	Wood and Clad Wood	30	N, NC, S, SC
Pella Architect Series Wood Fixed Casement with SunDefense Low-E Triple IG	PEL-N-41	0.16–0.20	0.16–0.20	Wood and Clad Wood	30	N, NC, S, SC
Pella Architect Series Wood Fixed Casement with NaturalSun Low-E Triple IG	PEL-N-41	0.16–0.20	0.35–0.45	Wood and Clad Wood	30	N, NC

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Ply Gem Windows
Pro Series 700 Awning	PWG-M-130	0.19–0.20	0.17–0.21	Vinyl	15	N, NC, SC, S
Pro Series 700 Casement	PWG-M-131	0.19–0.20	0.17–0.21	Vinyl	15	N, NC, SC, S
Ecosmart/Pro/Premium/Uniframe Casement	PWG-M-25	0.14–0.20	0.13–0.25	Vinyl	40	N, NC, SC, S
Ecosmart/Pro/Premium/Uniframe Awning	PWG-M-26	0.14–0.20	0.13–0.25	Vinyl	45	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Polaris Technologies
UltraWeld 8450 Casement Window	POL-M-37	0.15–0.20	0.13–0.31	Vinyl	70	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
ProVia Door, Inc.
Aeris Wood Clad Vinyl Casement Window	PRD-K-64	0.16–0.20	0.16–0.23	Wood and Clad Wood	50	N, NC, SC, S
Aeris Wood Clad Vinyl Awning Window	PRD-K-65	0.16–0.20	0.16–0.23	Wood and Clad Wood	50	N, NC, SC, S
Aspect/Endure 524/624 Vinyl Casement	PRD-K-75	0.14–0.18	0.18–0.26	Vinyl	60	N, NC, SC, S
Aspect/Endure 531/631 Vinyl Awning	PRD-K-76	0.15–0.18	0.18–0.26	Vinyl	60	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Seaway Mfg. Corp.
Lighthouse/Commander	SMA-A-21	0.16–0.20	0.18–0.22	Vinyl	45	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Soft-Lite LLC
Casement	SLL-A-81	0.15–0.20	0.15–0.37	Vinyl	40	N, NC, SC, S
Awning	SLL-A-82	0.15–0.20	0.15–0.37	Vinyl	40	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Sunrise Windows, Ltd.
Sunrise/ Restorations/ Solace/ Vanguard/ V-Class/ Verde/ Season-Tech	SUW-K-14	0.17–0.19	0.14–0.23	Vinyl	70	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Thermal Windows and Doors
SC / SELLEBRITY II/ CASEMENT	TRI-K-64	0.16–0.20	0.18–0.21	Vinyl	55	N, NC, SC, S
SC / SELLEBRITY II/ AWNING	TRI-K-65	0.17–0.20	0.18–0.21	Vinyl	45	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Thermo-Tech Windows and Doors
Classic Awning	TTW-A-4	0.18–0.19	0.15–0.24	Vinyl	40	N, NC, SC, S
Classic Casement	TTW-A-3	0.18–0.19	0.15–0.24	Vinyl	50	N, NC, SC, S
Northern Elevations Awning	TTW-A-22	0.16-0.2	0.14-0.38	Vinyl	50	N, NC, SC, S
Northern Elevations Casement	TTW-A-19	0.16-0.2	0.14-0.38	Vinyl	50	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Value Windows and Doors, Inc.
Eurotek 70 Dual Action Tilt and Turn	VWS-A-48	0.17–0.18	0.12–0.16	Vinyl	60	S
GS-CM TRIPLE PANE	VWS-A-20	0.19–0.20	0.14–0.21	Vinyl	30	S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Vinyl Window Designs Ltd.
100 Casement	VID-N-1	0.18–0.19	0.21–0.23	Vinyl	70	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Vinylmax LLC
Prestige Series	VIM-M-15	0.16–0.20	0.16–0.23	Vinyl	50	N, NC, SC, S
Sherwood Series	VIM-M-26	0.17–0.20	0.20–0.23	Wood and Clad Wood	50	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Vista Window Company, LLC
Panorama Awning	VWC-K-5	0.17–0.20	0.19–0.23	Vinyl	15	N, NC, SC, S
Panorama Casement Window	VWC-K-4	0.17–0.20	0.19–0.23	Vinyl	50	N, NC, SC, S

Product Line	CPD Number	U-Factor	SHGC	Frame Type	PG	Climate Zones
Wincore Window Company, LLC
7700, 9900 Series Out-Swing Casement Window	WCW-M-31	0.18–0.19	0.14–0.16	Vinyl	50	NC, SC, S
7700, 9900 Series Awning Window	WCW-M-32	0.18	0.14–0.16	Vinyl	35	NC, SC, S
7700, 9900 Series Basement Window	WCW-M-38	0.18	0.14–0.16	Vinyl	25	NC, SC, S

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A Window Inc.

Andersen Corporation

Associated Materials, Inc.

Capitol Glass/Northerm Windows

EnergyWall Windows & Doors

Ideal Window Manufacturing, Inc.

Interstate Window & Door Co.

JELD-WEN, Inc.

Joyce Manufacturing Co.

Kensington HPP, Inc.

Kohltech International, Ltd.

Kolbe Windows and Doors

Marvin Windows and Doors

Mathews Brothers Company

MI Windows and Doors

National Vinyl LLC

OKNA Windows & Doors

Pella Corporation

Ply Gem Windows

Polaris Technologies

ProVia Door, Inc.

Seaway Mfg. Corp.

Soft-Lite LLC

Sunrise Windows, Ltd.

Thermal Windows and Doors

Thermo-Tech Windows and Doors

Value Windows and Doors, Inc.

Vinyl Window Designs Ltd.

Vinylmax LLC

Vista Window Company, LLC

Wincore Window Company, LLC