Glass

Everest Glass

There's Much More to Glass Than Meets the Eye

Different glass types for different needs
Improve noise reduction, security & energy efficiency
New Ultimate glass with 0.80 U value
Decorative, privacy & leaded options

It's What You Can't See That Matters Most

Glass might be transparent but it makes up a significant part of every window. When buying new windows, many focus on the style and frame colour without considering how important the type of glass is. You might think that glass is just glass, but, not all glass is the same. Glass comes in varying thicknesses, clarity levels and coatings, all imperceptible to the human eye, but choosing the right glass can improve your home's energy efficiency, security and noise reduction.

The Importance of Glass

Different Glass Types for Different Needs

There are several types of glass you can choose for your windows and doors depending on the needs and problems in your home. Whether it's energy efficiency, reducing external noise or protecting furniture from UV damage we have the right glass to solve the problem.

Different glass types

Everest glazed units are made from a combination of glass types

A Combination of Glass Types in Every Glazing Unit

A double glazed window has 2 panes of glass and 4 faces whilst a triple glazed window has 3 panes and 6 faces. In an individual window unit, different types of glass can be used and by combining these, we can create specific windows and doors to meet different needs.

Individual Glazing Units for Rooms Just as Individual

If different problems in different rooms are an issue, the right specialist glass unit for each room will make a significant difference. By selecting the right type of glass for each room, you can optimise to ensure maximum comfort, security and energy efficiency in your home. Don't feel you have to have a house full of the same glazing.

Glass for different rooms in a house

The Everest Glass Range

Energy Saver

With a market-leading BRFC energy rating, this range uses a combination of Low Iron glass to allow the sun’s heat to enter, and Low Emissivity glass to keep the heat inside, helping to reduce your energy bills. Both double and triple glazing are available with a security laminated option.

Noise Reducing

Helps reduce the amount of noise disturbance that can enter through a window. A special acoustic laminate is added to the glass to help dampen sound waves, plus the air gap between the panes helps achieve a quieter home. The laminate provides security benefits, as well as additional protection from UV damage.

Ultimate

Our new range achieves our lowest U Value with the glass acting as an insulator. The high-performance solar reduction glass reflects the sun's rays whilst noticeably reducing heat loss. The glass is toughened as standard and both double and triple glazing are available with a security laminated option.

Everest Triple Glazing Units

Ultimate

Low U Value

Energy Saver

Best for energy efficiency

Ultimate Triple Glazing

The outer pane reduces solar heat gain and provides high insulation, this combined with the centre pane and Low E inner pane reflects heat back into the room.

Benefits

Low U Value

Reduced solar gain

A high degree of neutrality

Download Tech Sheet (44mm)

Download Tech Sheet (32mm)

Performance

U Value (No Georgian Bars): 0.80

G Value: 0.19

Window Energy Rating: C

Glass Panes

Outer Pane: 4mm Toughened SKN176

Centre Pane: 4mm Toughened Clear

Inner Pane: 4mm PlaniTherm One

Decorative Glazing Options

Georgian Bars: Not available

Obscure Glass: Not available

Leaded Glass: Not available

Energy Saver Triple Glazing

The outer pane allows solar heat in while the centre and inner panes both reflect heat back into the room.

Benefits

Highly energy efficient (A++ Rated)

Neutral and clear appearance

Increased level of solar heat gain

Download Tech Sheet (44mm)

Download Tech Sheet (36mm)

Download Tech Sheet (32mm)

Performance

U Value (No Georgian Bars): 0.91

G Value: 0.40

Window Energy Rating: A++

Glass Panes

Outer Pane: 4mm Low Iron

Centre Pane: 4mm Toughened Low E

Inner Pane: 4mm Low E

Decorative Glazing Options

Georgian Bars: Internal only

Obscure Glass: Optional

Leaded Glass: Optional

Everest Double Glazing Units

Ultimate

Low U Value

Noise Reducing

Noise Reduction

Energy Saver Plus

Energy efficiency

Energy Saver

Energy efficiency entry level

Ultimate Double Glazing

The outer pane reduces solar heat gain and provides high insulation, this combined with the Low E inner pane reflects heat back into the room.

Benefits

Low U Value

Reduced solar gain

A high degree of neutrality

Download Tech Sheet

Performance

U Value (No Georgian Bars): 1.20

G Value: 0.21

Window Energy Rating: E

Glass Panes

Outer Pane: 4mm Toughened SKN176

Inner Pane: 4mm PlaniTherm One

Decorative Glazing Options

Georgian Bars: Internal or External

Obscure Glass: Not available

Leaded Glass: Not available

Noise Reducing Double Glazing

The inner pane includes a special acoustic laminate that disrupts sound waves helping to reduce noise coming into the room. Read more about Everest noise reduction windows.

Benefits

Enhanced soundproofing

Can reduce sound up to 40 decibels

Good insulation

Download Tech Sheet

Performance

U Value (No Georgian Bars): 1.36

G Value: 0.43

Window Energy Rating: A

Glass Panes

Outer Pane: 6mm Low Iron

Inner Pane: 6.8mm Acoustic Laminated

Decorative Glazing Options

Georgian Bars: Internal or External

Obscure Glass: Optional

Leaded Glass: Optional

Energy Saver Plus Double Glazing

The outer pane increases solar heat gain while the inside pane reflects heat back into the room.

Benefits

Highly energy efficient (A+ Rated)

Neutral and clear appearance

Increased level of solar heat gain

Download Tech Sheet

Performance

U Value (No Georgian Bars): 1.32

G Value: 0.46

Window Energy Rating: A

Glass Panes

Outer Pane: 4mm Low Iron

Inner Pane: 4mm Low E

Decorative Glazing Options

Georgian Bars: Internal or External

Obscure Glass: Optional

Leaded Glass: Optional

Energy Saver Double Glazing

The inner pane reflects heat into the room.

Benefits

Highly energy efficient (A Rated)

Reflects heat back into the room

A good budget option

Download Tech Sheet

Performance

U Value (No Georgian Bars): 1.30

G Value: 0.45

Window Energy Rating: A

Glass Panes

Outer Pane: 4mm Clear

Inner Pane: 4mm Low E

Decorative Glazing Options

Georgian Bars: Internal only

Obscure Glass: Optional

Leaded Glass: Optional

U Values, G Values and WER Ratings

Triple Glazing Unit	Unit Size	U Value	G Value	WER Rating
Ultimate	44mm	0.80	0.19	C
Ultimate (Flush)	32mm	1.10	0.19	E
Energy Saver	44mm	0.91	0.40	A++
Energy Saver (With Georgian Bars)	36mm	1.00	0.39	A+
Energy Saver (Flush)	32mm	1.10	0.40	A

Double Glazing Unit	Unit Size	U Value	G Value	WER Rating
Ultimate	28mm	1.20	0.21	E
Ultimate (Flush)	28mm	1.30	0.21	E
Noise Reducing	28mm	1.36	0.43	A
Noise Reducing (Flush)	28mm	1.43	0.43	B
Energy Saver	28mm	1.30	0.45	A
Energy Saver Plus	28mm	1.32	0.46	A
Energy Saver Plus (Flush)	28mm	1.40	0.46	A

*U-value for Ultimate based on BS EN 10077

The U-value for a window measures the heat loss through thermal transfer. The G-value measures the solar gain and how much heat is transferred through the glass in UV radiation.

Glass types

Glass Types Explained

All the double glazing and triple glazing units in the Everest range are made with a combination of the following glass types.

❯ Low E Glass

❯ Low Iron Glass

❯ Toughened Glass

❯ Security Laminated Glass

❯ Acoustic Laminated Glass

❯ Solar Control Glass

Enhance Your Glass Aesthetically

Privacy & Obscure Glass

Obscure glass covers a type of glass that includes frosted glass, patterned glass, textured glass and privacy glass.