LEED-AP-Homes Exam Dumps : LEED AP Homes (Residential) Exam

TheLEED for Homes Rating System (v4)awards points for theMaterials and Resources (MR) Credit: Environmentally Preferable Productswhen using certified lumber, specifically Forest Stewardship Council (FSC)-certified wood, which contributes to the required percentage of material cost.

According to theLEED Reference Guide for Homes Design and Construction (v4):

MR Credit: Environmentally Preferable Products (1–4 points)

Use FSC-certified wood for at least 25% (1 point), 50% (2 points), or 90% (3–4 points) by cost of the total materials. For specific material categories like roof sheathing, at least 90% of the component (by cost) must be FSC-certified to significantly contribute 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

Points are awarded for FSC-certified lumber if it constitutes at least 90% of a specific component like roof sheathing (by cost) to meet higher point thresholds (e.g., 3–4 points). Certified lumber is not a prerequisite; it contributes to the credit.

Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.

The correct answer isif the certified content is greater than 90%(Option B), as this ensures the roof sheathing significantly contributes to the credit’s material cost threshold for points.

Why not the other options?

TheLEED for Homes Rating System (v4)addresses rainwater harvesting in theSustainable Sites (SS) Credit: Rainwater Management, which aims to reduce runoff and its environmental impacts, particularly in areas with significant rainfall events.

According to theLEED Reference Guide for Homes Design and Construction (v4):

SS Credit: Rainwater Management (1–3 points)

Rainwater harvesting systems (e.g., rain barrels, cisterns) capture and store rainwater, reducing runoff volume and mitigating on-site erosion, especially during substantial rainfall spikes, by preventing excessive water flow across the site.

Source: LEED Reference Guide for Homes Design and Construction, v4, Sustainable Sites Credit: Rainwater Management, p. 76.

TheLEED v4.1 Residential BD+Crating system confirms:

SS Credit: Rainwater Management

A key benefit of rainwater harvesting is mitigating on-site erosion by capturing runoff, particularly in areas with heavy rainfall, reducing soil displacement and environmental damage.

Source: LEED v4.1 Residential BD+C, Credit Library, accessed via USGBC LEED Online.

The correct answer ismitigates on-site erosion(Option A), as rainwater harvesting reduces runoff, preventing erosion during rainfall spikes.

Why not the other options?

TheLEED for Homes Rating System (v4)incorporates aHome Size Adjustmentthat adjusts the point threshold for certification based on the home’s conditioned floor area and number of bedrooms, recognizing that smaller homes inherently use fewer resources and energy.

According to theLEED Reference Guide for Homes Design and Construction (v4):

Home Size Adjustment

Smaller homes require fewer points to achieve certification due to their lower energy and resource use, particularly in theEnergy and Atmosphere (EA)category. The adjustment rewards smaller homes for their reduced energy consumption, as reflected in credits likeEA Credit: Annual Energy Use, where smaller homes typically achieve lower HERS Index scores due to lower energy demand.

Source: LEED Reference Guide for Homes Design and Construction, v4, Introduction, p. 24; Energy and Atmosphere Credit: Annual Energy Use, p. 116.

TheLEED v4.1 Residential BD+Crating system confirms:

Home Size Adjustment

Smaller homes benefit from a lower point threshold for certification, reflecting their inherently lower energy use, which aligns withEA Credit: Annual Energy Useby requiring less energy to achieve efficiency targets.

Source: LEED v4.1 Residential BD+C, Credit Library, accessed via LEED Online.

The correct answer issmaller homes are awarded credit in the Energy and Atmosphere category because they use less energy(Option D), as smaller homes have lower energy demands, making it easier to achieve energy efficiency credits.

Why not the other options?