A single-family home meets the Indoor Environmental Quality Credit Prerequisite, Ventilation using a continuous exhaust strategy. Which of the following Indoor Environmental Quality credits are potential credit synergies?
Radon Control
Contaminant Control
Enhanced Combustion Venting
Enhanced Ventilation
TheLEED for Homes Rating System (v4)requires theIndoor Environmental Quality (EQ) Prerequisite: Ventilation, which can be met using a continuous exhaust strategy to provide adequate outdoor air. Certain EQ credits have synergies with this prerequisite, enhancing ventilation performance or indoor air quality.
According to theLEED Reference Guide for Homes Design and Construction (v4):
EQ Credit: Enhanced Ventilation (1–3 points)
Projects that meet the ventilation prerequisite using a continuous exhaust strategy can pursue the Enhanced Ventilation credit by providing additional outdoor air, improving air distribution, or installing advanced filtration systems. This credit builds on the prerequisite by optimizing ventilation performance.
Source: LEED Reference Guide for Homes Design and Construction, v4, Indoor Environmental Quality Credit: Enhanced Ventilation, p. 146.
TheLEED v4.1 Residential BD+Crating system confirms:
EQ Credit: Enhanced Ventilation
This credit synergizes with the ventilation prerequisite by offering points for exceeding minimum ventilation requirements, such as increasing outdoor air rates or using high-efficiency filters in continuous exhaust systems.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
TheEnhanced Ventilationcredit (Option D) is a direct synergy with the continuous exhaust strategy, as it builds on the prerequisite by improving ventilation rates, distribution, or filtration.
Why not the other options?
As a prerequisite for Education of the Homeowner, Tenant, or Building Manager, the operations and maintenance manual must include which of the following?
A set of building plans
A list of local services including a map
Product manuals for installed equipment
Chemical analysis of domestic water supply
The question references an "Energy and Atmosphere Prerequisite" for homeowner education, which appears to be a misnomer, as theLEED for Homes Rating System (v4)includes this requirement under theInnovation (IN) Prerequisite: Education of the Homeowner, Tenant, or Building Manager. This prerequisite ensures occupants are educated on the home’s sustainable features and maintenance needs.
According to theLEED Reference Guide for Homes Design and Construction (v4):
IN Prerequisite: Education of the Homeowner, Tenant, or Building Manager
Provide an operations and maintenance manual that includes product manuals for installed equipment (e.g., HVAC, water heating, renewable energy systems) to guide homeowners or tenants in proper operation and maintenance of green features.
Source: LEED Reference Guide for Homes Design and Construction, v4, Innovation Prerequisite: Education of the Homeowner, Tenant, or Building Manager, p. 188.
TheLEED v4.1 Residential BD+Crating system confirms:
IN Prerequisite: Education of the Homeowner or Tenant
The operations and maintenance manual must include product manuals for all installed equipment to ensure proper use and upkeep of sustainable systems.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
The correct answer isproduct manuals for installed equipment(Option C), as these are required in the operations and maintenance manual to support homeowner education.
Why not the other options?
To comply with Materials and Resources Prerequisite: Certified Tropical Wood, all wood in the building must be:
Non-tropical, reused, reclaimed, or certified
Tropical wood that is more than 10 years old
Only from the tropical region
From within 200 miles of the building site
TheLEED for Homes Rating System (v4)includes theMaterials and Resources (MR) Prerequisite: Certified Tropical Wood, which ensures that wood used in LEED projects is sourced sustainably to protect tropical ecosystems.
According to theLEED Reference Guide for Homes Design and Construction (v4):
MR Prerequisite: Certified Tropical Wood
All new wood in the project must be nontropical, reused, reclaimed, or certified by the Forest Stewardship Council (FSC). Tropical wood, if used, must be FSC-certified. This prerequisite ensures that wood sourcing does not contribute to deforestation in ecologically sensitive regions.
Source: LEED Reference Guide for Homes Design and Construction, v4, Materials and Resources Prerequisite: Certified Tropical Wood, p. 156.
TheLEED v4.1 Residential BD+Crating system confirms:
MR Prerequisite: Certified Tropical Wood
All wood must be nontropical, reused, reclaimed, or FSC-certified. Tropical wood is only permitted if it is FSC-certified.
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
To comply, all wood must benon-tropical, reused, reclaimed, or certified(Option A), ensuring sustainable sourcing across all wood types used in the project.
Why not the other options?
In order for a LEED home to earn a point for Materials and Resources Credit, Environmentally Preferable Products, what minimum amount of insulation must be reclaimed or salvaged?
70%
80%
90%
100%
TheLEED for Homes Rating System (v4)awards points for theMaterials and Resources (MR) Credit: Environmentally Preferable Productswhen materials, including insulation, meet sustainable criteria such as being reclaimed or salvaged. The credit calculates compliance based on the percentage of total material cost.
According to theLEED Reference Guide for Homes Design and Construction (v4):
MR Credit: Environmentally Preferable Products (1–4 points)
Use products that meet one or more of the following criteria for at least 25% (1 point), 50% (2 points), or 90% (3–4 points) by cost of the total materials:
Reused or salvaged materials, such as reclaimed insulation.For specific material categories like insulation, at least 90% of the insulation (by cost) must be reclaimed, salvaged, or meet other environmentally preferable criteria to contribute significantly to the credit.Source: LEED Reference Guide for Homes Design and Construction, v4, Materials and Resources Credit: Environmentally Preferable Products, p. 160–161.
TheLEED v4.1 Residential BD+Crating system confirms:
MR Credit: Environmentally Preferable Products
To earn points, insulation must meet environmentally preferable criteria (e.g., 90% reclaimed or salvaged by cost) to contribute to the overall material cost percentage (25%, 50%, or 90%).
Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.
For insulation to contribute to earning a point under this credit, aminimum of 90%(by cost) must be reclaimed or salvaged (Option C), aligning with the credit’s threshold for significant material contributions.
Why not the other options?
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