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LOW E GLASS

The glass you choose will make a difference to the comfort of your home and the size of your energy bills.

Metro Performance Glass has a range of Low E Double and Triple Glazing that can greatly increases the effectiveness of your window glazing to give you superior home insulation.

WHAT IS LOW E DOUBLE GLAZING

When looking out through Low E (low emissivity) glass the virtually invisible high-tech coating, lets light into your home, while reflecting heat. It improves double and triple glazing to further insulate your home in winter and help to keep your home cooler in summer.

HOW LOW E WORKS

The protective, high-tech coating on Low E glass effectively forms a barrier, reflecting heat back from the glass to reduce heat loss, while at the same time reducing solar gain.

During winter, Low E glass reflects heat back into the room, so less heat is lost through the windows. In summer, the sun’s heat is reflected back outside.

Low E glass also works to keep the heat in during winter, reducing the chance of condensation.

Low E double and triple glazing performance is increased with the addition of a thermal spacer and gas.

High performance Low E double glazing is so good at reducing heat loss, it provides performance levels greater than triple glazing of all but the same glass types in Triple Glazing.

LOW E BENEFITS

GREATER INSULATION, MORE COMFORT

Improving your window insulation reduces heat loss and solar gain, reducing your heating needs in winter and cooling requirements in summer. Better insulation makes it easier to keep temperatures constant, so your comfort level is increased.

LESS CONDENSATION

Low E glazing increases the internal glass surface temperature, which reduces the likelihood of condensation on the inner glass surface. This means your home stays drier, which in turn makes for a healthier living environment.

SMALLER ENERGY BILLS

You will use less energy to heat and cool your home, providing energy savings over the course of a year. ENVIRONMENTALLY FRIENDLY

Depending on your Low E glazing selection there is less reliance on heating and cooling, which means fewer energy resources are required to keep your home comfortable all year round.

GLARE REDUCTION

Large areas of glass can let in too much light, creating glare. This can be reduced with Low E glass and or in conjunction with a body tinted glass, a trade off however is that the home will be darker in the day. Reducing glare can also help reduce fading on your furnishings.  Solar control Low E such as Low E Xtreme can also reduce fading to a level like a tint, while still letting in plenty of light and keeping the home warmer in winter.

IMPROVEMENT ON THE BUILDING CODE

The type of Low E glazed windows chosen can help improve on the minimum performance of windows in new homes, as required by the NZ Building Code.

CHOOSE THE LEVEL OF PERFORMANCE YOU NEED

Metro aims to increase the performance of the windows in your home. Your needs may be met by our Classic range, but you may require a custom solution. This is why we have developed additional Low E options that ensure you can choose a glass that meets both your requirements and your budget. For example, while Low E glass has a slight visual hue, Metro’s Low E Xcel glass has a visible light transmission of 81%. This is virtually the same as clear glass, which has a transmission of 82%.

THE METRO PERFORMANCE SELECTION TOOL

To help you select the right glass type for your new joinery, we have introduced a selection tool for our Low E range. This gives you a comparison with classic double glazing as the base mandated in the building code since 2008.  It is important to note. the proposed NZ Building Code of Nov 2022 will see higher thermal performance required across the 6 climate zones that make up New Zealand.

 

OTHER POINTS

 

Houses in different parts of the country are suited to different types of Low E double glazing. It is important to note your priorities in terms of insulation levels, solar gain, and sound control etc. to ensure you get the best performance glass for your home.

Low E glass is so efficient, in some area’s morning dew can form on the outside glass. This is mostly seen with homes that have no eaves, are sheltered from prevailing breezes, with high humidity and cold conditions overnight