Clearview National April 2018 - Issue 197 - Page 56

Outdoor Living Top tips for choosing energy-efficient glass Energy-efficient glass can help homeowners save up to 20% a year on heating bills. With the range of options available now bigger than ever, there really is no excuse for homeowners to be spending more than necessary on household bills. » » PHIL BROWN, EUROPEAN regulatory marketing manager at Pilkington United Kingdom Limited, part of the NSG Group, offers his top tips for choosing the right energy-efficient glass to help save money and reduce impact on the environment. These tips can help installers go above and beyond for their customers. 1. Don’t delay. Upgrading windows can be one of the most effective ways of saving energy. A recent National Energy Foundation report indicated that 8.7% of the overall energy used in UK homes can be saved if energy-efficient glass is installed. 2. Selection is key. Ordinary clear, uncoated float glass has an emissivity of around 0.9, meaning it’s a poor insulator. However, a glass with a low-emissivity (low-e) coating such as Pilkington K Glass™ S, which has an emissivity of 0.05, offers excellent thermal insulation. 3. Don’t forget location. Windows, doors, conservatories and rooflights can all benefit from the use of energy-efficient glazing to help bring bills down. 4. Mix and match. To ensure your customer gets the most from a product, incorporate different glass into an insulating glazing unit (IGU). Pilkington K Glass™ S can be combined with other glazing products to bring optimum light, solar and noise performance. 5. Do your maths. Use the GGF Energy Savings Calculator to determine how much could be saved with energy- efficient glass, before buying. 6. Choose a rating. When specifying your product, keep an eye out for its Window Energy Rating (WER) to determine how energy-efficient it is. Intended for replacement domestic windows, the rating system is based on a scale of G to A++, with A++ being the most energy- efficient. 7. Don’t overlook the importance of proper installation. Energy-efficient glass will be compromised if it isn’t installed correctly. We recommend using a company which is a member of the Glass and Glazing Federation (GGF). 8. Know your terms. Thermal insulation of an IGU is quantified by its U-value. The lower its U-value, the less heat will be lost through the IGU during the winter. With U-values as low as 0.9 W/m2K, ‘smart’ double-glazing can offer triple-glazing performance. 9. It’s not all about thermal insulation. For so ѥ̰х䁍͕مѽ)ɽ̰ɝ䵕䁅ͼ)ɕՍͽȁ́ѡյȸ)QadمՔ͍ɥ́ѡͽȁɽ)əɵLѡݕȁѡ)مՔѡɔѡջéЁݥ)ɕѕ(%QѕѥȁɽٕЁ́՝(ؔ镐ɕ́ɽéե)ɔͥɕаѱ䁉͔)ͥͥȁёѕՉ)饹)ȁɔ٥ѡɕЁ)ɝ䵕Ё́م)хѥ͔٥܁ѡAѽ)ݕܹѽլɝɔ(؃ AH 0IY$\U, <