DRAFT GreenPoint Rated Existing Home Rating Manual version 6.0 | Page 4

Introduction D1. Optimal Value Engineering ...........................................................................................................................32 D2. Evaluation and Correction of Exterior Assembly..........................................................................................33 D3. Engineered Lumber .......................................................................................................................................37 D4. FSC-Certified Wood .....................................................................................................................................38 D5. Retrofit/Upgrade Structure for Lateral Load Reinforcement for Wind or Seismic .......................................39 D6. Energy Heels on Roof Trusses ......................................................................................................................39 D7. Overhangs and Gutters ..................................................................................................................................40 D8. Reduced Pollution Entering the Home from the Garage ...............................................................................41 D9. Structural Pest and Rot Controls ...................................................................................................................42 D10. Moisture-Resistant Materials in Wet Areas (such as Kitchen, Bathrooms, Utility Rooms, and Basements) 43 E. Exterior .......................................................................................................................................................... 44 E1. Environmentally Preferable Decking ............................................................................................................44 E2. Rain Screen Wall System ..............................................................................................................................44 E3. Durable and Non-Combustible Cladding Materials ......................................................................................45 E4. Durable Roofing Materials ............................................................................................................................45 E5. Vegetated Roof ..............................................................................................................................................46 F. F1. F2. F3. G. Insulation ....................................................................................................................................................... 49 Insulation with 30% Post-Consumer or 60% Post-Industrial Recycled Content ...........................................49 Insulation that Meets the Section 01350 Residential Standard for Low Emissions ......................................49 Insulation That Does Not Contain Fire Retardants........................................................................................50 Plumbing ....................................................................................................................................................... 51

G1. Efficient Distribution of Domestic Hot Water...............................................................................................51 G2. Install Water-Efficient Fixtures .....................................................................................................................53 G3. Pre-Plumbing for Graywater System.............................................................................................................55 G4. Operational Graywater System......................................................................................................................56 G5. Plumbing System Integrity and No Plumbing Leaks ....................................................................................56 G6. Central Domestic Hot Water Survey and Tune-Up .......................................................................................57 G7. Water Submetering: Bill Tenants for Actual Usage ......................................................................................60 H. Heating, Ventilation, and Air Conditioning .................................................................................................. 63 H1. HVAC System Survey ..................................................................................................................................63 H2. Sealed Combustion Units ..............................................................................................................................65 H3. Design and Install HVAC System to ACCA Manual J, D, and S Recommendations ...................................65 H4. High Performing Zoned Hydronic Radiant Heating System .........................................................................66 H5. Effective Ductwork .......................................................................................................................................67 H6. High Efficiency HVAC Filter (MERV 8+) ...................................................................................................68 H7. ENERGY STAR® Bathroom Fans Meet HVI Standards with Air Flow Verified........................................68 H8. Advanced Practices for Cooling ....................................................................................................................69 ii GreenPoint Rated Existing Home Rating Manual Version 6.0, September 2013 © Build It Green