Passed Exam Today LEED-Green-Associate

As of 1996, the Montreal Protocol banned the production of chlorofluorocarbons (CFCs), a chemical compound known to have ozone-depleting potential. CFCs are synthetic substances that were widely used as refrigerants, propellants, solvents, and foam-blowing agents. CFCs have high ozone depletion potential (ODP), which means they can destroy the ozone layer that protects the Earth from harmful ultraviolet radiation. The Montreal Protocol is an international treaty that aims to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances. The Montreal Protocol banned the production of CFCs in 1996 for developed countries and in 2010 for developing countries1 . References: LEED v4 Green Associate Candidate Handbook1, UNEP’s Montreal Protocol

Soft surfaces contribute to a comfortable acoustic environment by absorbing sound waves and reducing noise levels. This can include items such as carpets, upholstered furniture, and acoustic ceiling tiles. In contrast, hard surfaces (like wood cabinets, hollow metal doors, or glass partitions) can reflect sound waves and increase noise levels. References: LEED Green Associate Candidate Handbook, U.S. Green Building Council resources

Chlorofluorocarbons (CFCs) are the class of refrigerants that contribute the most to ozone depletion potential (ODP). Ozone depletion potential is a measure of how much a substance can damage the ozone layer in the stratosphere, which protects life on Earth from harmful ultraviolet radiation. CFCs are synthetic chemicals that contain chlorine, fluorine, and carbon atoms. They were widely used as refrigerants, aerosol propellants, solvents, and foam blowing agents until they were phased out by the Montreal Protocol due to their high ODP. The LEED Green Associate Candidate Handbook states that one of the strategies for achieving energy and atmosphere efficiency is to “eliminate chlorofluorocarbons (CFCs) in new building HVAC&R systems” [1, p. 15]. References: LEED Green Associate Candidate Handbook, [Ozone Depletion Potential | U.S. Environmental Protection Agency]

In the context of a LEED project, the charrette is a meeting of stakeholders, project team members and others to establish project objectives. The charrette is a collaborative and participatory process that involves brainstorming, discussing, and generating ideas and solutions for the project’s sustainability goals, design strategies, performance targets, and evaluation methods. The charrette is usually held at the early stages of the project to ensure alignment and integration among all parties involved. The LEED Green Associate Candidate Handbook states that one of the steps in the integrative process is to “conduct a preliminary LEED assessment with key project team members, including owner” [1, p. 12]. References: LEED Green Associate Candidate Handbook, [Charrette | Whole Building Design Guide]