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Multiple levels of green built home certifications are available (Certified, Silver, Gold, Platinum, Net Zero Ready, Net Zero Energy and Regenerative), ensuring that the program is available to all budgets and experience levels. Homes earn additional points to attain each certification level and in doing so demonstrate that they have exceeded market-level to a significant degree. We have programs for single family homes, multi family buildings, and entire communities.
Certified Green Built Homes offer the following benefits while also encouraging climate-conscious building and environmentally friendly construction techniques and products.
- energy & water savings
- third party verification and quality assurance
- healthier indoor air and improved occupant comfort
- access to green building rebates and incentives
Why go Net Zero?
Net Zero Homes help work towards the goal of reducing fossil fuel use to zero by 2050, by reducing energy use and producing renewable energy to offset fossil fuel consumption. A Net-Zero Energy or Net-Zero Ready home is capable of offsetting most or all of its annual energy use. To achieve Net Zero certification a house must meet one of the three Net Zero prerequisites listed below (#17 – 19), and verify projected energy use through a HERS Rating and inspection.
Why go Regenerative?
Do you want the strongest certification you can get? Regenerative buildings are designed and built so that they are integrated and have a net-positive impact on the natural environment around them. For example, a home with regenerative elements may produce more energy than it uses; capture and treat water onsite; incorporate biophilic design to enhance human connection with the natural world; or prioritize site restoration and native plantings or food production. Would you like to become accredited as a Regenerative Professional?
Green Built Homes Checklist V3 Rev4
Check out our point system below for details on what the various measures are for certification. They are organized by category (in the order of typical construction phases), how many points you can earn for each one (highlighted in bold), notes when applicable, and links to find more information (noted with an *). If you have questions, please contact our Green Built Homes Project Manager by emailing homes@greenbuilt.org or calling 828.254.1995.
(Last Updated 06.01.2023)
Prerequisites (Required)
All of these Prerequisites are required. PLEASE NOTE the Net Zero Requirements highlighted in the last column are only required if you are pursuing a Net Zero Certification on top of your normal certification.
* Explanation of a Blower door test
NOTE: All homes must meet this minimum requirement as approved by the RESNET Certified Rater and their provider agreement. Sample testing may be allowed (using RESNET sampling protocol).
* Energy Star HVAC Installation Guidebook
Test all air distribution systems (at 25 Pascals measured in CFM of leakage per conditioned square footage) to have no more than 4% leakage to the outside and no more than 8% total leakage (12% if >3 returns per system) at final inspection OR rough-in testing of less than 4% total leakage if all ducts are in conditioned space
NOTE: Meeting guidelines set forth by ENERGY STAR is acceptable
* Right Sized Heating and Cooling Equipment DOE Factsheet
The total cooling capacity of each cooling system must comply with Manual S or current ENERGY STAR oversizing guidelines
NOTE:
– Design calculations shall reflect the actual home built including outdoor design temperatures, orientation, number of bedrooms, conditioned floor area, window area, fenestration and insulation values, ventilation, presence of MERV6 or better filter, and indoor temperature set points = 70°F for heating; 75°F for cooling. Infiltration value should be set to Average or tighter OR actual conditions
– Other acceptable methods of calculation include ASHRAE 2009 Book of Fundamentals
– Multi-speed or multi-stage equipment use Manual S Guidelines reference in Energy Star HVAC Design Report
– The equipment oversizing limit should be based on the largest capacity of the unit.
– Responsibility Party includes HVAC contractor, Engineer or HERS Rater. Contact the program administrator for exceptions.
* Whole House Ventilation System DOE Factsheet
* Energy Star HVAC Design Report
NOTE: Systems should be tested where possible. Un-tested systems to be at least 20% oversized
* NREL’s Fact Sheet on Spot Ventilation
• Baths with showers TESTED to exhaust 50 CFM intermittent or 20 CFM continuous. Continuous bath fans must be ENERGY STAR Labeled.
• Kitchen exhaust TESTED to exhaust 100 CFM, minimum (hood or downdraft), or comply with ASHRAE Standard 62.2. >600 CFM requires intentional make up air.
Note that range hoods over 600 CFM have the potential to cause comfort, energy efficiency, and air-quality issues in homes that are not easily solved by technology or inspections. Green Built Homes strongly encourages participants to consider alternatives, such as induction.
* DOE Fact Sheet on Combustion Safety
• Carbon monoxide (CO) detectors must be installed, one per floor
• All gas equipment is sealed combustion, power vented, or located outside the conditioned space (including sealed crawl space). No unvented combustion equipment. (ovens and ranges excluded)
* EPA’s Guide to Carbon Monoxide’s impact on IAQ
• Carbon monoxide (CO) detectors must be installed, one in room with fireplaces and one per floor
• Gas and wood-burning fireplaces/stoves must have a dedicated outdoor combustion air supply able to withstand flame exposure. Unvented fireplaces are not permitted.
• Gas fireplaces must have doors or a solid glass enclosure. Manual dampers on gas fireplaces are not permitted
* Garage to house wall details
• Provide air barrier between conditioned living space and garage; including weatherstripping at all penetrations, sealed drywall joints, and other measures as necessary.
• Air Handlers may not be installed in a garage.
Timers may not be used to meet the control requirement.
For homes in Radon Zone 2-3, or Homes on vented crawlspaces a passive test is required.
* EPA’s Radon Resources for Contractors
* EPA’s Radon Standards of Practice/AARST ANSI Standards
The home must not exceed 4.0 pCi/L. Homes that are fully on stilts are exempt from the testing requirement.
NOTE: A 3 or 4 in. diameter gas-tight vertical vent pipe, clearly labeled, shall be connected to an open T-fitting in the aggregate layer (or connected to geotextile drainage matting according to the manufacturer’s instructions) beneath the polyethylene sheeting, extending up through the conditioned spaces and terminating a minimum of 12 in. above the roof opening. For crawlspaces, install at least 5 ft. of horizontal perforated drain tile on either side of the T-fitting, attached to the vertical radon vent pipe beneath the sheeting and running parallel to the long dimension of the house.
Exemption: Homes on vented crawls can also perform a passive test. Homes that are fully on stilts are exempt from the testing requirement.
* NC DENR Guidelines for Erosion and Sediment Control
* Erosion Control for Home Builders
NOTE: In jurisdictions where erosion control site plans are required, this is automatically met.
The plan should indicate and include, as applicable: areas where topsoil will be removed, where contours of slopes will be cleared or reshaped, the location and types of erosion control measures, the stormwater and sediment management systems, and a vegetative plan for temporary and permanent soil stabilization.
* EPA’s Renewable Energy Ready Home Resources
a) HERS 55 or lower
b) South roof area suitable for future photovoltaic collectors facing within 45° East or West of solar South and free of shade
c) A minimum of 110 sq.ft of roof area per 2000 sq.ft of conditioned area
d) Chase and 3/4 inch metal conduit installed
NOTE: A home that does not meet all requirements in items b-d may provide an estimate and system design by a Licensed Installer. Such designs may include future ground mounted systems or sytems on east/west facing roofs–but in all cases such systems must be sufficient to achieve a projected HERS 15 or less.
Combi meters are allowed instead of item d if the home is projected to need less than 6kW to achieve HERS 15 or less.
Home meets the following: Site Opportunity 2b (100% Stormwater Management), Water Opportunities 1 & 2 (consumption calculations) and Water Opportunities 4f & 5b (rainwater system to meet total demand and plumbed for non-potable use).
Site & Landscape
Healthy outdoors by using erosion control and saving existing trees.
Min 5 pts required
Site Disturbance
* NC DENR Guidelines for Stormwater
a. Install rain gardens, bio-retention basis and/or infiltration strips (Riverlinks WaterRich Program) (1)
b. Use permeable materials for 50% of walkways and patios (Overview of Permeable Pavers by the City of Seattle) (1)
c. Use permeable materials for driveways (except for required curb cut) (2)
d. Vegetated roof system (1 point per 20% roof area) (EPA WaterSense Smart Outdoor Practices) (1-5)
* Calculating Stormwater Runoff
a. Quantify average annual inches of stormwater runoff generated by the home using the EPA Stormwater Tool (NOAA – Precipitation Rates) (2)
b. Install stormwater control systems to manage runoff from at least the 2 year, 24 hour storm (EPA WaterSense Smart Outdoor Practices) (GBA Google Doc: How to Use the EPA Stormwater Tool for Site Points 2a and b)
(1-10)
NOTE: Cannot be taken in conjunction with Site Opportunity #1
NOTE: Identify areas to be preserved and develop a strategy for avoiding mechanical and chemical damage, grade changes, trenching, filling, and compaction. An arborist (sometimes available through the local planning department) can help you decide which trees can be saved and can work with the builder to protect the trees throughout each construction phase. It is important to involve a knowledgeable professional during this planning phase to ensure actual survival of trees but not required. The end result should be a document (written or graphic) that can be physically posted on the job site. The Tree Preservation Plan shall be reviewed with subcontractors and posted on the job site at the beginning of the project.
NOTE: Can be applied to a lot or an entire development
Location
a. Land within 100 ft. of any water body (including wetlands)
b. At or below the 100 year floodplain elevation (FEMA Flood plain maps)
c. Prime farmland (USDA Soil Map)
PRIME FARMLAND NOTES:
1. visit Web Soil Survey
2. Enter address under the “Area of Interest” tab at the top and then “Quick Navigation” on left menu. Use the zoom tool if needed.
3. Select the “AOI rectangle” from the tools menu at the top of the map and draw a rectangle around the project area.
4. Select the “Soil Data Explorer” tab at the top.
5. On the left menu, click on “Land Classifications,” then “Farmland Classification.” Select “View Rating” to see a list of all soils types on the site. Under the map is a key explaining the symbols.
6.Confirm that none of the soils are prime farmland. Record the data or take a screen shot if needed.
FLOODPLAIN NOTES:
1. Visit FEMA Flood Map Service Center
2. Enter Address
3. Select “Dynamic Firmette”
4. Record the date or take a screen shot if needed.
a. Walk Score greater > 30 (1)
b. Walk Score greater > 50 (3)
c. Walk Score greater > 70 (5)
Calculate your Walk Score
a. Bike Paths within 1 mile or bikescore >20 (1)
b. Bike Path/Lanes within 1 mile that connects to business district
or bikescore > 40 (2)
a. Build on site within 1/2 mile of existing water and sewer infrastructure (1)
b. Build on infill site (2)
c. Build home on .15 acre (max.); or build in development with density of 6 or more homes per acre (3)
d. Build home on .10 acre (max.); or build in development
with density of 10 or more homes per acre (4)
* Buncombe County Workforce Housing
NOTE: Reference local municipality for current affordable and workforce housing guidelines.
For homes in Buncombe County,
Maximum Sales price:
Single Family Site Built: $220,000 Multifamily Unit: $175,000
Landscaping
* NC Extension Agency Rain Garden Guide
a. Design provided to be at least 50% of the landscaped area (1)
b. Installed in at least 50% of the landscaped area (Native Plants or NWF Native Plant Finder) (2)
c. Installed in 100% of the landscaped area (Edible Landscaping) (3)
d. Permaculture Landscape Installed (must be designed by certified Permaculturist) (Permaculture) (4)
a. A minimum of 30 sq ft of raised garden beds for single family home (1)
b. >100 sq ft of raised garden beds for single family home (2)
NOTE: The food garden must have solar access
For multi-family buildings or multi-home developments with shared space, the food garden must comprise at least:
15 square feet per unit for one point, 30 square feet per unit for two points
a. Bear Prevention (all of the following): Provide a bear proof garbage enclosure, round door knobs on exterior doors, no edible plants located adjacent to entry ways (BearWise and Bear Audit Checklist) (1)
b. At least 50% of the site designated as a National Wildlife Federation Certified Wildlife Habitat (NWF Certified Wildlife Habitat) (1)
c. Donate land equivalent in size to the disturbed area for conservation to approved local land trust. Financial or volunteer contributions of equitable proportion also acceptable. (4)
Water Efficiency
Lower water bills by using high efficiency irrigation and plumbing fixtures.
Min 5 pts required
Using the Water Sense water budget tool. (3)
Outdoor
* EPA WaterSense Smart Outdoor Practices
Includes xeriscaping, mulched areas, forest, meadow, no-mow grass and/or drought tolerant plants (excludes conventional turf). (1-10)
(1 point per 10 percent of landscaped area)
NOTE: No Mow Grass mixes must be approved on a case by case basis.
(Choose ONE):
NC DEQ Rainwater manual
a. ≥ 50 gallons (1)
b. ≥ 150 gallons (2)
c. ≥ 500 gallons (3)
d. ≥ 1500 gallons (4)
e. Rainwater system designed to capture enough rainwater to provide 100% of outdoor and indoor water needs (may be in conjunction with other methods). (Rainwater Harvesting: Guidance for Homeowners) (10)
a. Pre-plumbed for non-potable use (NC DEQ Rainwater manual) (3)
b. Non-potable use (5)
c. Potable use (Case Study: potable use of rainwater) (10)
a. Pre-plumbed for outdoor use (3)
b. Pre-plumbed for toilet flushing (Oasis Design: Stub out for greywater) (3)
c. Code approved system for outdoor use only (Plumb with Greywater) (4)
NOTE: Site must be designed to handle the water
d. Code approved system for toilet flushing (5)
e. 100% of greywater captured, reused and/or treated onsite (6)
Indoor
a. ≤ 1.8 gpm flow rate (1)
b. ≤ 1.5 gpm flow rate (2)
a. WaterSense labeled or 1.5 gpm flow rate (1)
b. < 1.5 gpm flow rate (2)
a. ≤ 2.0 gpm flow rate (2)
b. ≤ 1.75 gpm flow rate (3)
a. WaterSense labeled /1.28 gpf (1 pt per toilet, max. 2) (1-2)
b. Dual flush: 1.6/0.8 – 1.1 gpf (2 pts per toilet, max. 4) (2-4)
* List of ENERGY STAR Qualified Products
a. ENERGY STAR Labeled (1)
b. ENERGY STAR Labeled with iMEF>2.4 and iWF<3.7 (2)
* List of ENERGY STAR Qualified Products
a. ENERGY STAR Labeled (1)
b. ENERGY STAR Labeled and uses ≤ 3.5 gallons/cycle (2)
Building Envelope
Lower utility bills by using high efficiency windows and insulation.
Min 5 pts required
(1-35)
1 point is awarded for every 2 HERS points decrease in the HERS Index, beginning with 1 point for a HERS Index of 70.
* What is the HERS Index? By RESNET
* ENERGY STAR New Homes Requirements
a. Energy Star for Homes Certification (5)
b. DOE Zero Energy Ready Home Certification (8)
* Explanation of a Blower door test
a. Minimum standard of 0.20 CFM50/sf of surface area (3)
b. Minimum standard of 0.15 CFM50/sf of surface area (4)
c. Minimum standard of 0.10 CFM50/sf of surface area (5)
Foundation Systems
Limit TWO per home (homes with only one foundation type)
Slab on Grade*
* Building Science Corp: Slab Insulation
a. Zone3=R-5, Zone4/5=R-10 (1)
b. Zone3=R-10, Zone4/5=R-15 (3)
c. Zone3=R-15, Zone4/5=R-20 (5)
Basement with Insulated walls*
a. R-11 continuous or R-15 cavity (2)
b. R-15 continuous or R-19 cavity (3)
Crawlspace with Insulated walls*
a. R-10 continuous (2)
NOTE: or R-13 cavity insulation
b. R-10 continuous (3)
NOTE: or R-15 cavity insulation
Basement, Crawlspace, or Cantilevers with Floor Insulation*
* Oak Ridge/DOE Foundation Wall Handbook
* ENERGY STAR Insulation Fact Sheet
a. R-19 insulation with air barrier on all six sides (or spray foam) (3)
b. R-30 insulation in contact with subfloor above (4)
c. R-30 insulation with air barrier on all six sides (or spray foam) (5)
Wall Systems
Limit ONE per home
Wood Frame Wall Construction
a. Wall insulation: Zone=R-19, Zone4=R-19, Zone5=R-21 (2)
Insulation Factsheet
b. Wall insulation: Zone3=R-21, Zone4=R-21, Zone5=R-23 (3)
Advanced Energy’s Insulation Tech Tips
NOTE: 90% of wall area must meet the R value
* Advanced Framing DOE Factsheet
a. Insulated headers to >R3 (1)
b. Insulated headers to >R9 (2)
Alternative Wall Construction: SIPS, ICF, Other
a. Zone3=R-13, Zone4=R-15, Zone5=R-19 (4)
b. Zone3=R-16, Zone4=R-18, Zone5=R-22 (7)
Ceiling/Attic
a. Unvented, encapsulated attic assembly (2)
Building America: Unvented Attics
Unvented Conditioned Attics DOE Factsheet
b. Radiant barrier installed facing into air space (1)
Radiant Barriers DOE Factsheet
NOTE: Must be installed in the attic, facing into open space
c. Attic kneewall with air barrier insulated above code:
Zone3=R17.5, Zone4=17.5, Zone5=R21.5 (1)
a. Vented attic insulation Zone3=R-38, Zone4/5=R-48 w/raised heel (2)
Ceiling and Vented Attic Insulation Fact Sheet
b. Spray foam at roof deck: Zone3=R-22, Zone4/5=R-25 (2)
c. Continuous Insulation: Zone3=R-20, Zone4=R-25 (2)
Windows, Doors, Piping, Electrical
* National Fenestration Rating Council
a. Average .32 or less (1)
b. Average .29 or less (2)
c. Average .25 or less (3)
* Find Energy Star Certified Windows
a. Average .25 or less (2)
b. Average .22 or less (3)
NOTE: Passive Solar Homes with high SHGC windows on the south side are eligible for these points if they meet the criteria on all other sides of the home and have proper shading/overhangs on all south facing windows
a. All hot water pipes in unconditioned spaces insulated to R-3 (1)
NOTE: Pipes located in exterior walls and floors are considered to be in the unconditioned space
b. All water pipes located inside conditioned space (not in exterior walls) (2)
c. All hot water pipes insulated to R-3 (1)
NOTE: Homes with hot water recirculation systems are not eligible for credit unless they are on-demand.
Heating & Cooling Systems
Higher comfort with efficiency equipment and sealed air ducts.
Min 5 pts required
Passive Solar Heating and Cooling Strategies
(no more than 5 fans required)
(long dimension faces within 15 degrees East or West of solar south)
* Passive Solar Primer
* Sus Design Overhang Calculator
– Mountain Region: 1′-8″, Piedmont Region- 2′-0″, Coastal: Region: 2′-4″
– May include gutter as part of the overhang; long dimension of home faces within 15 degrees East or West of solar south
NOTE: Mountain Region: 1′-8″, Piedmont Region- 2′-0″, Coastal: Region: 2′-4″
-May include gutter as part of the overhang; long dimension of home faces within 15 degrees East or West of solar south
* Passive Solar Design by DOE
At minimum, implement on 90% of the southern and western facing windows
At minimum, implement on 90% of the southern and western facing windows.
(all glazing within 45 degrees north or south of east should be included in calculation)
(all glazing within 45 degrees north or south of west should be included in calculation)
* NREL Passive Solar Design Guide for WNC
a. South facing glazing between 6-10% of total conditioned floor area. Glazing must be within 15 degrees E. or W. of solar south and must have proper overhangs. (4)
b. South facing glazing between 8-12% of total conditioned floor area. Glazing must be within 15 degrees E. or W. of solar south, must have proper overhangs, thermal mass and an SHGC >.45 (6)
Design and Installation
Ducted systems
* Energy Star HVAC Installation Guidebook
* Advanced Energy: Duct Sealing
a. Total Leakage of < 4% of the home’s heated square footage at final or < 2% at rough-in (3)
b. Total Leakage of < 3% of the home’s heated square footage at final or < 1% at rough-in (5)
* Building Science Corp: Transfer Ducts and Grilles
a. Air transfer grills or insulated jumper ducts in every bedroom. NOTE: Provide 1 sq. in. of free area opening per 1 CFM of supply air (1)
NOTE: Provide 1 sq. in. of free area opening per 1 CFM of supply air
b. Return-air ducts in every bedroom (3)
c. Rater-measured pressure differential ≤ 3 Pa. NOTE: On High Speed, with respect to the main body of the home when all bedroom doors are closed and all air handlers are operating. (1)
NOTE: On High Speed, with respect to the main body of the home when all bedroom doors are closed and all air handlers are operating.
Ductless systems
* DOE: Ductless Heating and Cooling
* DOE: Radiant Floor Heating
100 Percentage of home
Heating and Cooling Equipment
Mini splits AND conventionally ducted systems are both eligible for the remaining points in this section
a. 2 Stage (2)
b. ≥ 2 or Variable Stage (3)
* DOE: Thermostats
a. Programmable (1)
b. Thermostat with Wifi or Home Automation System capability (2)
a. ≥ 8.5 HSPF, 7.2 HSPF2, 92 AFUE Furnace, 90 AFUE Boiler or 3.3 COP (1)
b. ≥ 9.0 HSPF, 7.6HSPF2, 94 AFUE Furnace, 94 AFUE Boiler or 3.9 COP (3)
c. ≥ 9.5 HSPF, 8.1HSPF2, 96 AFUE Furnace, 96 AFUE Boiler or 4.1 COP (5)
d. ≥ 13 HSPF or 10 HSPF2 (7)
* Geothermal Heat Pumps
a. SEER or SEER2 (15 SEER and Above) (1-10)
b. EER (14 EER and Above) (8-14)
(max. 7 innovation pts awarded per category)
Appliances, Lighting, Renewables
Lower utility bills by using Energy Star appliances and lighting
Min 5 pts required
Appliances
* ENERGY STAR Refrigerators
a. Refrigerator is ENERGY STAR labeled (1)
b. Total refrigeration uses <550 kWh (3)
a. Dryer is ENERGY STAR labeled (2)
*ENERGY STAR Clothes Dryers
b. Heat Pump Dryer, or CEF >4 (3)
* ENERGY STAR: Water Heater Selection
* DOE: Water Heater Selection
a. Gas Water Heater (Tank or Tankless) (UEF) ≥ 0.79 (2)
b. Whole-Home Gas Tankless (UEF) ≥ 0.90 (3)
c. Heat Pump Water Heater (UEF) < 3.0 (4)
d. Heat Pump Water Heater (UEF) ≥ 3.0 (5)
e. Solar Water Heater (6)
a. Desuperheater assist provides hot water (2)
b. Geothermal system provides all hot water (5)
* EPA: Efficient Hot Water Delivery
Compact design of conventional system, central manifold distribution system or structured plumbing system.
NOTES:
Compact Design Systems must meet all of the following:
1. No branch line from the water heater to any fixture may exceed 20 feet in one story homes. Add 1x the ceiling height for 2 story homes and 2x the ceiling height in three or four story homes.
Central Manifold Systems must meet all of the following:
1. The central manifold trunk must be no more than 6 feet in length and insulated to at least R-4
2. No branch line from the central manifold to any fixtures may exceed 20 feet in one story homes, add 1x the ceiling height for 2 story homes and 2x the ceiling height in three or four story homes.
3. Branch lines from the manifold must be a maximum of 1/2 inch nominal diameter
Structured Plumbing Systems must meet all of the following:
1. The system must have a demand controlled circulation loop, that insulated to at least R-4
2. The total length of the circulation loop must be less than 40 linear feet of plumbing in one story homes, 2x the ceiling height for 2 story homes, add 4x the ceiling height in 3 or 4 story homes
* DOE: Lighting
a. >90% of lamps in lighting fixtures are CFLs or LEDs (3)
b. 100% of lamps in lighting fixtures are LEDs (5)
(Credit available for ALL of the following):
* Whole Building Design Guide: Daylighting
a. Light tubes (1)
b. Clerestory (1)
* DOE: Lighting Contols
(1 pt per switch, max. 3)
* Home automation system design: the basics
a. Appliances (1 pt per eligible appliance, max 3) (1-3)
NOTE: Eligible appliances include:
Refrigerator
Dishwasher
Oven
Laundry
3 smaller appliances = 1 credit:
TV, Computer, Stereo etc.
b. >50% Lighting (1)
NOTE: Whole house lighting off switch would also qualify
NOTE: Must be installed on breaker to allow homeowners to monitor energy usage of appliances in real-time
Renewables
Must be facing within 45° East or West of solar South, min 110 square feet of roof area per 2000 square feet of conditioned floor area
* EPA’s Renewable Energy Ready Home Resources
NOTE: A combi meter is allowed in leui of a) if the projected system size to get to HERS 15 is 6KW or smaller.
a. Min 3/4″ metal conduit installed
b. Quote from installer provided to homeowner (could include future ground mount system and site plan if there isn’t suitable roof area)
* Database of Incentives for Renewable Energy
* NREL: PV Watts Calculator
a. On-site renewable electricity generation (1-75)
Percentage of total annual energy use
b. Renewable energy system sized to provides 2800 kWh/year excess for charging plug-in vehicle. (5)
a. Level 1 Outlet accessible to parking area (1)
b. Pre-wired: 240v compatible wiring to plate in parking area* (2)
* Plug-In NC EV Ready Home Builders Guide
c. Level 2 Outlet installed in parking area* (3)
* Plug-In NC Residential Handbook
Percentage provided by Solar Thermal
(max. 7 innovation pts awarded per category)
* List of EPA Certified wood stoves
Health & Indoor Air Quality
A healthy interior with non-toxic finishes and minimizing moisture
Min 5 pts required
Contaminant Control
* Garage to house wall details
* DOE: Garage to house wall
* Building Science Corp: Airtight Drywall
The garage-to-house pressure is at least 47 Pascals when the house is depressurized to 50 Pascals below ambient.
Pascals (42=1 point, 45- 2 points, 47=3 points)
* EPA: Duct Cleaning
* Nat. Air Duct Cleaning Association: Proper Cleaning Methods
NOTES: Thoroughly clean and vacuum ducts after final construction stages and replace filters if in use during the construction phase
System static pressure must be designed and calculated to perform with the higher efficiency filter installed.
a. MERV 8 (1)
b. MERV 11 (2)
c. MERV 13 or greater (includes HEPA or “HEPA-like” filters) (3)
* DOE: Whole House Ventilation Systems
a. Distributed Ventilation System (2)
NOTES: A Distributed Ventilation system is either exhaust from every bathroom OR supply to every bedroom and main living space.
An ERV that supplies air into the HVAC return is considered distributed if there is a return in every bedroom.
While fan-interlocked ERVS may also take this credit, this strategy is not recommended due to the energy penalty, and the HERS model must include the central air handler fan wattage as part of the ventilation energy use.
b. Balanced Ventilation System (required for Platinum Level Certification) (3)
NOTES: A Balanced Ventilation System must have both supply and exhaust, measured to be within 20% of each other
c. High Efficiency ERV/HRV – greater than 1.5 cfm per watt (4)
* Energy Star Ventilation Fans
* DOE: Spot Ventilation Strategies
a. Install ENERGY STAR labeled fans (1)
b. Rated less than 1 sone (1)
c. Controlled by timer or occupancy sensor (1)
d. Controlled by humidistat (2)
e. Bath fans located directly above the shower enclosure (1)
a. HVAC system with dehumidification mode or controls (1)
b. Dehumidification system installed to serve below grade areas (3)
NOTES: Dehumidification system must have the capacity and design such that at least 90% of below grade area will maintain an interior relative humidity at or below 50% at 75 degrees Fahrenheit
c. Central dehumidification system installed (6)
NOTES: Dehumidification system shall be installed to remove moisture from at least 90% of conditioned areas and be designed to maintain interior relative humidity at or below 50% at 75 degrees Fahrenheit.
NOTE: Homes with wood burning fireplaces can still get this credit if there is no other combustion equipment in the home.
(does not require activation) (3)
IAQ Material Use
a. Kitchen/bath cabinetry/casework (1)
b. Countertops (1)
c. Closet shelving (1)
d. Interior Trim (1)
e. Caulks and Adhesives (1)
f. Interior Paints and Primers Low VOC (1)
g. Interior Paints and Primers Zero VOC (2)
h. Stains, sealants and finishes (other than flooring) (1)
i. Flooring (including floor stains and finishes) (1)
j. Carpet (1)
k. No Carpet in the home (2)
l. Interior Doors (1)
m. Furnishings (Min. 3 pieces) (1)
n. Wall Insulation (1)
o. Floor and Ceiling Insulation (1)
p. Plumbing (1) NOTE: HDPE or Copper piping are PVC free and eligible for credit
q. Sheathing (1) NOTE: MgO or Air Renew drywall qualify
NOTES: 90% of component must meet the criteria to receive credit. Each material must meet one of the following to receive the credit:
-KCMA
-CRI Green Label Plus
-Green Seal
-CARB 2
-CA Section 01350
-GREENGUARD
-SCS Indoor Advantage
-Low toxic alternatives to conventional products considered “Living Building Challenge Compliant” Qualify
If the product doesn’t meet any of the above, you may submit it for approval by the program on a case by case basis.
RESOURCE LINKS:
Indoor Air Plus: Low Emission Products CARB Compliance Info for Consumers CA Section 01350 GREENGUARD Green Seal CRI Green Label SCS Indoor Advantage Living Future Compliant Products Living Future: Red List Chemicals to Avoid
NOTES: For 48 total hours with windows open and run a fan and/or HVAC Fans and Exhaust fans continuously at max setting. 48 Hours can be non-consecutive.
Materials
A low maintenance home using durable, local, and recycled content materials
Min 7 pts required
1 point per 100 square feet under 2500
Construction Material Waste
NOTE: Locate the cutting area for cutting lumber and wood panel products in one area. Store cutoffs and panel pieces with other similar sized cuttings for ease of use when small pieces are needed. The goal is to use leftover pieces in lieu of full sized lumber when appropriate.
(applies to site-built and modular framing systems; modular units automatically receive these points)
NOTE: Locate the cutting area for cutting lumber and wood panel products in one area. Store cutoffs and panel pieces with other similar sized cuttings for ease of use when small pieces are needed. The goal is to use leftover pieces in lieu of full sized lumber when appropriate.
* Construction Waste Management Guide
* Builders Field Guide to Residential Construction Waste
a. Wood (1)
b. Cardboard (1)
c. Metal (1)
d. Plastic (1)
e. Drywall (1)
f. Other (1) NOTE: vinyl, carpet, asphalt, concrete
NOTE: Cannot be taken in conjunction with #5
* Construction Waste Management Guide
* Builders Field Guide to Residential Construction Waste
lb/sf construction waste (if below 4.2 lb/sf) (1-8)
Percent of existing structure reused; 1 pt per 10% reuse (2-10)
NOTE: Cannot be taken in conjunction with #4
Durability and Moisture Management
* EPA: Moisture Control Guidance
NOTE: A capillary break shall be installed between a concrete foundation wall and the sill plate. The capillary break should be a sill gasket, EPDM-type rubber, or other suitable membrane that can prevent bulk moisture from reaching the framing by way of capillary action.
Decks are excluded from this requirement.
* Oak Ridge/DOE Foundation Wall Handbook
NOTE: All below grade walls shall be damp-proofed and feature a drainage plane material on the exterior of the wall that channels water down to the drain tile. Drainage plane materials include special drainage mats, high-density fiberglass insulation products, and washed gravel.
NOTE: A continuous foundation drain, flush with the bottom of the footing and covered with silt
protection fabric, gravel, or both, shall be installed. All footing drain lines shall be connected away and downhill from the foundation.
* EPA: Moisture Control Guidance
NOTE: A continuous foundation drain, flush with the bottom of the footing and covered with silt
protection fabric, gravel, or both, shall be installed. All footing drain lines shall be connected away and downhill from the foundation.
NOTE: Overhang must provide a projection factor of at least 0.375. The Projection Factor is the ratio of the overhang depth (A) to the overhang height (B) above the door threshold.
a. 30 year warranty (min 65%) (1)
b. 50 year warranty (min 65%) (2)
a. 25 year warranty (min 95%) (1)
b. 50 year warranty (min 95%) (2)
NOTE: All cut or unprimed sides of painted or stained exterior trim shall be primed prior to installation. Pre-primed product does not need to be re-primed, as long as no cut has been made. This includes the ends, the top and bottom edges and the front and back face. Separate incompatible trim products as required by manufacturer for corrosion resistance.
* DOE Guidance: Rodent/Bird Screens
NOTE: Exception: Dryer Vents
NOTE: Excludes all decking and porches but all decking and porch wood should be separated from concrete by metal or plastic fasteners or dividers
NOTE: House has to have been landscaped to receive this credit. Homes with no landscaping to not automatically qualify
Environmentally Preferable Materials
* Choosing Green Materials
* Building Green Product Guide
* SCS recycled content verification info
(credit available for ALL of the following): Rapidly Renewable, Engineered, Third Party Certified Wood, Recycled Content, Locally Produced, Low Embodied Energy, Salvaged Materials:
a. Concrete (25% Fly Ash only) (1)
NOTE: Points only available if concrete is 25% or greater fly ash (Points are available for Locally Manufactured under “flooring” (“n” or “o”) below if the concrete is the finished floor material)
b. Wall framing members – Interior (2)
c. Wall framing members – Exterior (2)
d. Floor framing members (2)
e. Roof framing members (2)
f. Headers (doors, windows, etc.) (1)
g. Insulation (Min. 50%) (1)
h. Insulation (Min. 100%, should be awarded in addition to “g”) (1)
i. Roofing (2)
j. Siding (2)
k. Doors (1)
l. Closet shelving (1)
m. Kitchen Cabinetry and Casework (1)
n. Interior Trim (1)
o. Countertops (1)
p. Flooring (Min. 25%) (1)
q. Flooring (Min. 75%, should be awarded in addition to “p” ) (1)
r. Decking and Outdoor Structures (2)
s. Furnishings (Min. 3 pieces) (1)
t. Other (1)
NOTE: Unless otherwise specified: A material must make up 90% of the component
Local Production=extracted, processed and manufactured within 500 miles of the home
Recycled Content=25% Post-Consumer or 50% Pre-Consumer Third Party Certified Wood=FSC
NOTE: The bathroom door must be at least 34″ wide and bathroom must be large enough to accommodate a wheelchair turning radius. Use broad blocking (sheet goods) rated for moisture installations in walls around the toilet, tub, and shower for custom placement and relocation of grab bars. Inform the homeowner of the location of sheet good blocking for future accessory installation.
* Universal Design Institute
NOTE: Pantries with height adjustable shelving can provide easily accessible storage space. They can be a walk-in unit or a reach-in unit with storage shelving on the doors. Shallow shelves keep items within easy reach.
Retractable doors can be used to conceal knee space. Special hardware allows the door to be pushed back under the counter after opening.
(or removable cabinet beside or below the stove top)
NOTE: Adjustable closet systems, including adjustable shelves and rods, can put clothing within reach for people of all abilities, and make closets more handicap accessible. Install hooks at usable heights for hanging belts, scarves, and other accessories. Include roll-under space if needed for wheelchairs.
NOTE: Lever handles and open-loop handles are designed for easy gripping.
NOTE: The top of the electrical panel should be no more than 54″ above the floor, and located with a minimum of 30″ x 40″ clear floor space in front to allow for maneuverability and easy reach for those in wheelchairs.
Vertically align one closet on the 2nd floor with one closet on the 1st floor to allow for future installation
(max. 7 innovation pts awarded per category)
Bonus Points
Bonus points encourage Homeowner education, facilitate Builder relationships, and support Green Built Homes program visibility
Min 3 pts required
* Green Built Alliance Homeowner Resources
a. List of high performance and green building features (a copy of their final checklist and HERS certificate) (1)
b. Green Built Alliance homeowner resource link provided (2)
c. Product manufacturer’s manuals or product data sheet for installed major equipment, appliances, and fixtures. (1)
d. Provide a diagram showing the location of safety valves and controls for major home systems. Minimum systems include HVAC & water distribution. (1)
e. Provide a thorough walkthrough to the homeowner covering items a-d (2)
f. Pre-schedule an evaluation by a certified Healthy Homes Evaluator* for 6 months after occupancy (2)
* BPI Healthy Home Evaluator
a. Built-in kitchen recycling center (1) NOTE: Kitchen recycling centers are modified kitchen cabinets or other systems that neatly conceal recycling bins.
NOTE: Kitchen recycling centers are modified kitchen cabinets or other systems that neatly conceal recycling bins.
b. Indoor composting system*, demonstrated to homeowner (1) * Sustainable Building: Home Recycling
c. Provide backyard compost bin or designated compost area with enclosure (1)
* Whole Building Design Guide Approach
Complete a Green Built Checklist indicating the credit items being targeted, and listing the team member responsible for providing the required documentation for each credit.
* Medium: 3 Simple Ways to Design a Biophilic Home
* Biophilic Design Guidebook
* BiophilicDesign.net Viewing Guide
NOTE: Biophilic design attempts to create connections between humans and nature. Provide a narrative describing each element included in the home and how it achieves this goal.
* Green Built Website
NOTE: Contact the GBH Program Manager for access to logos, brochures and yard signs
a. Green Built pamphlets provided on-site (1)
b. Company website or brochure displays Green Built logo (1)
c. Company website includes a page of educational information about green building including the features and benefits of certification (1)
d. Ad or yard sign displays Green Built logo (2)
e. Publish newspaper or magazine article on the home
NOTE: Online articles may be acceptable on a case by case basis. (2)
f. Make presentation on Green Built to group of 10 or more (2)
g. Giving the homeowners a membership to Green Built Alliance (1)
h. Participate in a Green Building Tour or Parade of Homes (2)