Double Glazing Product Detail

Environmentally Friendly Insulated Glass

Environmentally friendly insulated glass is designed to reduce energy demand, improve comfort, and support sustainability-led building performance without compromising visual clarity or day-to-day durability.

Energy EfficientLow-E ReadySustainable Build

Overview

Environmentally friendly insulated glass combines sealed double- or triple-glazed construction with performance-driven glass selection to minimise heat transfer and reduce heating or cooling demand. By slowing unwanted heat movement through the glazing, these units help lower operational energy use while improving interior comfort across seasons.

This type of build is particularly valuable in modern residential, commercial, and green building projects where long-term efficiency, indoor comfort, and a reduced environmental footprint are central to the project brief.

Key benefits

Improves thermal insulation to support lower energy consumption.
Helps reduce the building's long-term carbon footprint.
Creates more stable indoor temperatures and better occupant comfort.
Supports condensation control by improving internal glass surface temperatures.
Offers long-term durability with less need for frequent replacement.

Configuration Options

Available glazing combinations

Environmentally focused insulated units can be tailored to suit building orientation, climate, performance goals, and the surrounding framing system. This allows the insulating build-up to respond more accurately to the demands of the project rather than relying on a one-size-fits-all solution.

Available as double- or triple-glazed insulated units.
Can include Low-E coatings to improve thermal control.
Suitable for clear, tinted, laminated, or toughened pane combinations.
Can be paired with warm-edge or aluminium spacer systems depending on project priorities.
Custom sizing is available for residential, commercial, and facade applications.

Low-E glazing explanation — Low-E coatings and performance-led glass combinations can be used within insulated units to help manage heat transfer while maintaining daylight.

Performance Table

NHG double glazing unit performance reference

Compare light transmission, solar performance, U-values, noise control, and safety data across the NHG insulated glazing range.

NHG Double Glazing Units

IGDB	Product	Visible Light			Solar Energy					SC	U-Value (W/m2)K		DWT	Noise Control		Safety	Security
NHG Double Glazing Units		Transmission	Reflection	Total Elimination	Reflectance	Absorption 1	Absorption 2	Direct Transmission	SHGC	Ratio	Airgap 6 mm	Airgap 12 mm	Tdw-ISO	Airgap Rw 6 mm	Airgap Rw 12 mm	Rating	Rating
NHG Double Glazing Units		Transmission	Reflection	Total Elimination	Reflectance	Absorption 1	Absorption 2	Direct Transmission	SHGC	Ratio	Airgap 6 mm	Airgap 12 mm	Tdw-ISO	Airgap Rw 6 mm	Airgap Rw 12 mm	Rating	Rating
6.38 + 6.38
	PVB Interlayer
ZA300101	Clear + Clear	78	14	32	11	19	12	58	0.68	0.78	3.03	2.68	56%	31	33	1	2
ZA300100/2	Clear + Clear Low E	73	17	35	13	20	15	52	0.65	0.74	2.41	1.88	51%	31	33	1	2
4 mm
16015	Clear + Clear	80	15	25	13	11	8	68	0.75	0.86	3.09	2.73	72%	29	30
16015/4140	Clear + Clear Low E	74	18	30	16	11	15	58	0.70	0.80	2.46	1.93	64%	29	30
4279/16015	Grey + Clear	51	8	41	9	36	6	49	0.59	0.68	3.09	2.73	45%	29	30
4279/4140	Grey + Clear Low E	47	10	46	10	37	11	41	0.54	0.62	2.46	1.93	41%	29	30
4279/16015	Bronze + Clear	55	9	38	9	33	6	52	0.62	0.71	3.09	2.73	45%	29	30
4279/4140	Bronze + Clear Low E	51	11	43	11	33	11	44	0.57	0.65	2.46	2.64	40%	29	30
6 mm
16017	Clear + Clear	79	15	28	12	15	11	63	0.72	0.82	3.05	2.70	69%	31	32
16017/4142	Clear + Clear Low E	73	17	33	15	16	16	54	0.67	0.77	2.44	1.91	51%	31	32
4279/16017	Grey + Clear	39	7	50	7	49	7	38	0.50	0.58	3.05	2.70	35%	31	32
4279/16017	Grey + Clear Low E	36	7	54	8	50	10	32	0.46	0.53	2.44	1.91	31%	31	32
4269/16017	Bronze + Clear	45	8	47	7	44	7	41	0.53	0.61	3.05	2.70	34%	31	32
4269/4142	Bronze + Clear Low E	41	8	51	9	45	11	35	0.49	0.56	2.44	1.91	31%	31	32

Project Support

Need insulated glass specified for better energy performance?

We can help you choose the right glass combination, spacer system, and insulated build-up for the comfort and sustainability targets of your project.

Request a Quote Contact Us