What are the window ratings?

The SHGC is the fraction of incident solar radiation admitted through a window and absorbed and subsequently released inward. SHGC is expressed as a number between 0 and 1. Again, the lower the number, the better: A low SHGC means the window transmits less solar heat.

What is a good U-value for windows Australia?

U-value ratings generally fall between 2.0-10.0 W/m2. K for Australian products. The rate of heat is indicated in the terms of the U-value of a window assembly which includes the effect of the frame, glass, seals and any spacers.

What is a good ER rating for windows?

between 25 and 35 ER points
A single number, or measurement, is established using complex scientific calculations and computer modeling. Basically, the higher the number, the more energy efficient the window or door is. The range for most Energy Star approved windows is between 25 and 35 ER points.

What is the U-value for windows?

While the U-Factor can take any value, in general for windows it ranges from 0.20 to 1.20. The lower the U-Factor, the better the window insulates.

What is a good energy performance rating?

EPC ratings. Your property will be given an energy-efficiency grade between A and G, with A being the best – ie most energy-efficient – and G being the worst. New-build homes tend to have high EPC ratings, while older homes often have lower ratings of around D or E.

What is the R-value of double pane windows?

about 2
R-value measures resistance to heat gain or loss. A typical insulated wall has an R-value anywhere from 12 to 19, while a double-pane window has an R-value of about 2.

What is the R-value of glass windows?

A single pane of glass has an R-value of about 1. Homeowners often double this by adding a single-pane storm window. These insulation ratings compare to blown-in cellulose insulation with an R-value of 3.6 per inch of insulation.

How can I tell if my windows are energy efficient?

First look for the ENERGY STAR label when buying new windows. Then review ratings on the energy performance label from the National Fenestration Rating Council (NFRC) to find the most efficient windows for your needs.

What is the window energy rating scheme?

The Window Energy Rating Scheme (WERS) provides a scientifically based, fair and credible rating system for the assessment of fenestration products for their energy efficiency performance. WERS is accredited by the Australian Fenestration Rating Council (AFRC) and adheres to AFRC protocols and procedures for the rating of windows and glazed doors.

What is the Australian Window Association doing to deliver more sustainable windows?

For this reason the Australian Window Association (AWA) and the Australian Glass and Glazing Association (AGGA) are developing an industry-wide strategy to deliver more sustainable residential buildings through energy-efficient windows and doors.

What is a WERS-Rated window or skylight?

WERS-rated windows, skylights, glazed doors and window films are accompanied by a sticker and certificate certifying it has been tested by an independent accredited simulator and approved by a WERS auditor. Thousands of windows and window films from the majority of manufacturers are listed according to the frame and glazing or tinting type.

Which is the best double glazing company in Melbourne?

Ecostar Double Glazing When it comes to UPVC Double Glazed windows and doors in Melbourne, Ecostar are the only company to turn to.