The Solar Reflectance Index (SRI) includes the measure of a material's
Correct Answer: B
The Solar Reflectance Index (SRI) is a measure of the roof's ability to reject solar heat, as shown by a small temperature rise. It is defined so that a standard black (reflectance 0.05, emittance 0.90) is 0 and a standard white (reflectance 0.80, emittance 0.90) is 100. SRI is calculated using the roof surface's Solar Reflectance (SR) and Thermal Emittance (TE). SR is the fraction of solar energy that is reflected by the roof, and TE is the relative ability of the roof surface to radiate heat. Therefore, SRI includes the measure of a material's ability to reflect solar radiation, but not its ability to absorb or emit thermal radiation. References: * What is the Solar Reflectance Index? - Cool Roof Rating Council * Definitions and Terms | HEATISLAND
Question 37
In order for a product to contribute to Materials and Resources Credit, Building Product Disclosure and Optimization, Environmental Product Declarations, Option 1. Environmental Product Declaration, the product needs to be
Correct Answer: D
The correct answer is D. critically reviewed life-cycle assessment conforming to ISO 14044. This is because: *Option 1 of this credit requires the use of products that have environmental product declarations (EPDs), which are documents that provide information about the environmental impact of a product throughout its life cycle1. *EPDs are based on life-cycle assessments (LCAs), which are systematic analyses of the environmental aspects and potential impacts of a product from raw material extraction to disposal2. *LCAs must conform to the international standard ISO 14044, which specifies the principles and framework for conducting and reporting LCAs3. LCAs must also be critically reviewed by an independent panel of experts to ensure their validity and reliability4. *The other options are not relevant for this credit. FSC certification is a label that indicates that a wood product comes from a well-managed forest5. Cradle-to-cradle certification is a label that indicates that a product is designed for circular economy, with minimal waste and toxicity. CSR is a report that discloses the social and environmental performance of a company.
Question 38
A project team has installed a rainwater harvesting system on site. In which of the following could this system be recognized?
Correct Answer: C
Explanation A rainwater harvesting system on site could be recognized in the Sustainable Sites Credit, Rainwater Management and the Water Efficiency Credit, Indoor Water Use Reduction. The Sustainable Sites Credit, Rainwater Management rewards projects that reduce runoff volume and improve water quality by replicating the natural hydrology and water balance of the site1. A rainwater harvesting system can help achieve this by capturing and reusing rainwater on site2. The Water Efficiency Credit, Indoor Water Use Reduction rewards projects that reduce indoor water consumption by installing water-efficient fixtures and fittings3. A rainwater harvesting system can help achieve this by providing an alternative source of water for non-potable uses such as toilet flushing and irrigation4. The other options are not correct. The Water Efficiency Credit, Water Metering does not recognize rainwater harvesting systems, but rather requires projects to install permanent water meters that measure the total potable water use for the building and grounds. The Water Efficiency Prerequisite, Outdoor Water Use Reduction does not recognize rainwater harvesting systems, but rather requires projects to reduce outdoor water consumption by using plant species that are native or adapted to the region and by using irrigation systems that are efficient and properly controlled. The Water Efficiency Prerequisite, Indoor Water Use Reduction does not recognize rainwater harvesting systems, but rather requires projects to reduce indoor water consumption by 20% from the baseline by installing water-efficient fixtures and fittings. References: *Rainwater Management, p. 1 *NC-v4 SSc4: Rainwater management, p. 2 *Indoor water use reduction, p. 1 *NC-v4 WEc3: Indoor water use reduction, p. 3 *[Water metering], p. 1 *[Outdoor water use reduction], p. 1 *[Indoor water use reduction], p. 2
Question 39
An office building design has demonstrated reductions in landscape water use of 30% over baseline and indoor water use of 40%. These reductions qualify the project for:
Correct Answer: D
Detailed A reduction of 30% in outdoor water use qualifies the project for one point under the Outdoor Water Use Reduction credit, and a 40% reduction in indoor water use qualifies for four points under the Indoor Water Use Reduction credit. LEED awards points for water conservation strategies that significantly reduce the demand for potable water.
Question 40
A LEED AP is evaluating whether Indoor Environmental Quality Credit, Acoustic Performance is feasible for a LEED AP Building Design and Construction: Healthcare project. Which of the following groups of documents would best inform this decision?
Correct Answer: A
The Acoustic Performance credit under the LEED BD+C: Healthcare rating system addresses the acoustic environment in healthcare spaces. It requires strategies that reduce noise levels, control background noise, and provide sound privacy. The documents that would best inform this decision are: * Airport flyover maps: These can help determine the level of external noise intrusion into the building, which can affect the acoustic environment. * Mechanical plans: These can provide information about the location and type of mechanical equipment, which can be a source of internal noise. * Wall sections: These can provide information about the construction of the walls, including materials and assemblies, which can affect sound transmission between spaces1.
