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BFRC Window Energy Ratings
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  • 1. BFRC Window Energy Ratings

2. BFRC Window Energy Ratings Agenda

  • BFRC Window Energy Ratings
  • What Are They?
  • The History
  • How To Improve a Windows Energy Rating
  • The Three Stages
  • The Costs
  • Benefits To The Fabricator
  • Benefits To The Consumer
  • Potential Savings
  • Energy Ratings
  • The Right Time
  • Building Regulations
  • Questions

3.

  • Heat loss through the window/glass (U value)
  • Solar Gain through the glass (g value)
  • Heat lost through perimeter seals (L50 value, Air Leakage)
  • A Method of rating the thermal performance ofreplacementwindow systems of different framing materials.
  • BFRC Ratings are calculated using 3 factors:
  • Calculations carried out by approved BFRC Simulator using thermal simulation software

218.6 x Window Solar Factor -68.5 x (Window U value + Air Infiltration Factor) BFRC Window Energy Ratings What are they? 4. BFRC Window Energy Ratings The History 2001 Group initiated BFRC Simulators First Meeting 2001-2004 BFRC Scheme development 2004 BFRC Ratings Launched Scheme launched at Glassex March 2004 2006 Inclusion in Building Regulations Added as a method of compliance for Part L 2006-2009- Scheme growth Registrations increase to over1100Energy Rated Windows by end 2008:- A rated windows- 280B rated windows-306C rated windows- 427D rated windows- 58E rated windows 39 Registered window companies 204 Current number of registered windows (19/02/2009) -1353 5. BFRC Window Energy Ratings How to Improve a Windows Energy Rating Multi Chamber Profile Improved Gaskets Non-Metallic Reinforcing Warm Edge Spacer Bar Low Emissivity Glass Argon Gas Low Iron Glass Slimmer Sightlines 6. BFRC Window Energy Ratings The Three stages. Step 1. Specification Fabricator decides on window specification Step 2. Report Extruder produces a BRFC reportStep 3. Audit The fabricator is audited by an IA 7. BFRC Window Energy Ratings Costs BFRC Registration 300 One off membership fee BFRC Product Fee 200 Annual fee per product registered. e.g.A rated window 200/year A,B,C rated windows600/year Independent Agency (IA) Audit Varies* 8. BFRC Window Energy Ratings Benefits Improved Company Image TheGreenMessage Replacing replacement windows Opportunity To Market a Premium Product Specification Opportunities 9. BFRC Window Energy Ratings Benefits to the consumer? Improving the energy efficiency of their home Save money on heating bills Reduce CO emissions Add value to the property 10. BFRC Window Energy Ratings Potential Savings C rated 5,530 ( 160 per year ) and a reduction of 30 tonnes of CO C rated windows can reduce the amount of energy lost through the windows in an average home by up to 70% and an A rated window by up to 90% .. Thats the equivalent to running 9 televisions for a year , driving 600 miles in an average sized car or making 34,000 cups of tea! A rated 6,580 ( 190 per year ) and a reduction of 60 tonnes of CO 11. BFRC Window Energy Ratings UPVC Energy Ratings AllWhiteCasement/Tilt & Turn windows can achieve anArating Vertical Sliding Sash windows can achieve aCrating Reversible windows can achieve aCrating Woodgrain finish windows can achieve aBrating 12. BFRC Window Energy Ratings The right time Despite the scheme being launched in 2004 and articles appearing in window trade publications, it is only recently that the general public have been made aware ofthe existence of Energy Rated Windows. Consumer facing advertising campaigns have been launched within the last 6 months by a number of companies including: Pilkington Glass Everest Anglian 13. Building Regulations - Part L April 2010 Revisions New Windows InExtensions Window U Value 1.8W/mK Window Energy Rating D Centre Pane U Value 1.2W/mK Replacement Windows in Existing Dwellings Window U Value 2.0W/mK Window Energy Rating E Centre Pane U Value 1.2W/mK Windows - Current Regulations (minimum requirement) Windows Proposed Regulations 2010 New Windows InExtensions Window Energy Rating C Replacement Windows in Existing Dwellings Window Energy Rating D 14. BFRC Window Energy Ratings Summary

  • BFRC Window Energy Ratings
  • BFRC WERs are a consumer friendly way of rating a windows thermal performance on a scale of A-G
  • There are now in excess of 1350 rated windows.
  • Ways of improving WERs include, slimmer sightlines, multi-chamber profiles, warm edge spacer, argon, low e glass, low iron glass
  • The Three Stages specification / report / audit
  • The Costs Less than 2000
  • Fabricator Benefits Premium product, Improved company image, green message, replacing replacement windows, Specification opportunities
  • Consumer Benefits Energy efficient home, reduced heating costs, reducedCO emissions, add value to property
  • Potential Savings up to 190/year
  • Energy Ratings White casements = A, woodgrain = B, VSS = C
  • Reversible = C
  • The Right Time Consumers are now aware WERs
  • Building Regulations 2010= Minimum D Rating

15. Thank you