| Energy Ratings |
|
|
|
|
The Window Energy Rating Scheme (WERS) rates the energy performance of residential windows. The rating process produces star ratings for heating and cooling performance. The WERS star ratings are performance rankings based on the predicted annual energy demand of the “model house” when fitted with the chosen windows. WERS is a star rating system that ranks windows in terms of their annual energy performance and provides certified data. An energy-efficient window or door is one that helps minimise the use of artificial heating and cooling in a building. Along with its natural beauty, timber is favoured over aluminium because of its extremely low thermal conductivity. The thermal conductance of timber (over aluminium) reduces the overall U-Value by 20-30%. (The U-Value represents the rate of heat transfer through a 1m² area of the window when there is a temperature difference of 1°K between the ambient temperatures on either side). |
visit our showroom to view our complete range of doors and windows
58 Bonner Drive (corner of Capital Road) Malaga, WA
our display home in South Fremantle is also available
for viewing by appointment
Wittmont Pty Ltd is a wholly WA owned & operated family business run by a husband and wife team since 2000. The business continues in the Mapp Bros tradition of fine timber joinery, founded in 1928. Read more...
we can be reached by phone: 08 9248 2011
fax: 08 9248 1079
email: service@wittmont.com.au
our factory-showroom is located at:
58 Bonner Drive Malaga 6090 WA
as part of Wittmont's commitment to ecologically sound business practices, all waste sawdust
byproduct is collected and compressed into briquettes.
These make for a clean burning, no mess alternative to firewood for fires and barbecues.
Click on the logo to visit the wombalog website: