Pass the USGBC Leadership in Energy and Environmental Design (LEED) LEED-Green-Associate Questions and answers with CertsForce

Reused materials are materials that have been used before and are incorporated into a new building without significant alteration1. They are different from recycled materials, which are materials that have been reprocessed into new products or materials2. Reused materials reduce the demand for new resources and the amount of waste sent to landfills1. LEED v4 encourages the use of reused materials by awarding points for Building Product Disclosure and Optimization - Sourcing of Raw Materials3.

Construction Waste Management | WBDG - Whole Building Design Guide1

Why plastic waste is an ideal building material - BBC Future2

LEED v4 | HPAC Engineering3

Implementing exterior light shelves is the best answer because light shelves can redirect daylight deeper into a space while reducing direct glare near windows. In LEED Indoor Environmental Quality, daylight strategies should improve visual comfort, reduce dependence on electric lighting, and avoid excessive brightness or glare that could reduce occupant satisfaction. Exterior light shelves, shading devices, glazing selection, blinds, and daylight-responsive controls can all support better daylight management. High-frequency ballasts reduce flicker in fluorescent lighting but do not control daylight glare. Task lighting gives occupants localized light, but it does not directly mitigate glare from windows. Reducing all window area may reduce glare, but it can also reduce daylight and views. Light shelves support both daylight access and visual comfort.

LEED encouragesTransportation Demand Managementstrategies to reduce single-occupancy vehicle use when access to public transit is not available. One such strategy is:

“Encouraging carpooling… provides options to users in areas without access to transit.”

Offering preferred parking for single-use vehicles contradicts the intent, and LEED cannot require changes to local transit systems. Providing extra parking encourages single-occupancy vehicle use.

Developing mixed-use areas is the correct answer because pedestrian circulation is promoted when housing, workplaces, shops, services, civic uses, and recreation are located within walkable distances. LEED Location and Transportation rewards patterns that reduce vehicle miles traveled, encourage walking, support compact development, and connect occupants to diverse uses. Mixed-use development makes walking more useful and convenient because people can meet daily needs without relying on single-occupancy vehicles. Limiting allowable land uses separates destinations and can increase driving. Eliminating street grid patterns may reduce connectivity and make walking routes longer. Increasing parking lots between buildings creates pedestrian barriers and encourages automobile dependence. A walkable neighborhood combines diverse uses, connected routes, human-scale design, and safe pedestrian access.

Resource depletion is a major environmental concern related to energy use. The extraction and use of non-renewable energy resources (such as fossil fuels) can lead to their depletion over time. This is why strategies that reduce energy use or utilize renewable energy sources are important in green building practices. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

ENERGY STAR is a program run by the U.S. Environmental Protection Agency (EPA) and U.S. Department of Energy that promotes energy efficiency. Products that earn the ENERGY STAR label meet strict criteria for energy efficiency and often for water efficiency as well, helping consumers save money on utility bills and protect the environment through energy-efficient products and practices. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

Installing dual-flush toilets can significantly reduce indoor water demand. Dual-flush toilets have two flush options: a half flush for liquid waste and a full flush for solid waste. By using less water for liquid waste, these toilets can reduce overall water consumption by up to 30%, helping to achieve the owner’s water reduction goal. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

The increase in air temperature in a developed area resulting from the dark surfaces of roadways, parking lots, and tarred rooftops is known as heat island effect. Heat island effect is a phenomenon whereby urban areas experience higher temperatures than rural areas due to the absorption and re-emission of solar heat by man-made surfaces. Heat island effect can have negative impacts on human health, energy consumption, air quality, and climate change. Some strategies to reduce heat island effect include increasing vegetation cover, using reflective or green roofs, using cool or permeable pavements, and enhancing natural ventilation.

The minimum program requirements (MPRs) are the basic characteristics that a project must possess in order to be eligible for LEED certification. One of theMPRs for the LEED for New Construction and Major Renovations Rating System is to comply with the minimum project size, which is defined as having a gross floor area of at least 1,000 square feet (93 square meters) that is capable of achieving a minimum level of energy efficiency13. References: LEED v4 Green Associate Candidate Handbook1, LEED v4 BD+C Reference Guide3