PLANITHERM TOTAL Energy Efficient Glass
Improve the energy efficiency of your windows and help reduce your heating bills!
With its optimised balance of very low emissivity and high solar gain SGG PLANITHERM¨ TOTAL can improve the energy index for a given window by around 8kWh/m2/year* (over half a band-width) when compared to traditional hard coated low-E products. A performance advantage almost equivalent to changing the outer pane from clear glass to low-iron glass. In addition, SGG PLANITHERM TOTAL has a number of other clear benefits, which is why it is the UK's leading high performance low-E coating brand.
6 reasons to choose SGG PLANITHERM TOTAL energy efficient glass
- Better thermal insulation - excellent thermal insulation whilst maximising free solar heat gain, saves on energy and heating bills
- More comfortable rooms - better insulation means fewer cold spots
- Less condensation - The inner surface of the glass stays warmer
- Less of a tint to the glass - Gives clear vision - Curtains do not look dirty or discoloured
- Less chance of "haze" than other thermally insulating glass due to the way it is manufactured
- Environmentally friendly - SGG PLANITHERM TOTAL saves energy and protects the environment
Part L of the Building Regulations for England and Wales (and Part F in Northern Ireland) includes Window Energy Ratings (WERs) as an alternative method of compliance.
The minimum level for replacement domestic windows is band E. For windows in new domestic extensions, the minimum requirement is band D. Additionally, in new dwellings, BFRC Ratings are now being used to guide building professionals towards more energy efficient design and building components.
What is a Window Energy Rating?
Window Energy Ratings were launched in early 2004 by the British Fenestration Rating Council (BFRC), an independent organisation dedicated to improving the energy efficiency of fenestration products. In late 2006 the BFRC became part of the Glass and Glazing Federation to ensure that appropriate managementsystems and organisation were developed to cope with increasing demand for window ratings. A window's rating is determined by a formula which takes into account available solar heatgains (window g-value) and subtracts the thermal losses (window U-value and air leakage).
Window Energy Ratings = Solar Gains - (Thermal Losses + Air Leakage)
Window Energy Ratings = 218.6 x g window - 68.5 x (U window + L50)