• Ecological development of sites • Effective water management • Energy and atmosphere • Materials and Resources • Quality of indoor environments • Innovation and design process. LEED certification addresses these basic needs while providing recognition for efforts to achieve them. It reduces the impact of the building on the environment while minimizing the costs associated with its life cycle. LEED certification is awarded to buildings that have demonstrated a commitment to sustainability by meeting higher standards of environmental responsibility and energy efficiency.
Credits for LEED certification
A number of prerequisites must be met prior to the LEED green building rating and certification: • Prevention of pollution from construction activities (erosion and sediment control); • Commissioning of the building’s basic energy systems; • Minimum energy performance; • Reduction of CFCs in HVAC (Heating, Ventilation and Air Conditioning) equipment and fundamental management of refrigerants and halon removal (brominated halogenated chemical compound); • Collection and storage of recyclable materials; • Minimum IAQ performance; • Ambient Tobacco Smoke Control (ETS); The aim of this precondition is, among other things, to control and reduce surface erosion and reduce the negative impact on surrounding water and air quality. Mitigation measures preserve the surface layer of the soil during construction from stormwater runoff and the movement of sand by high winds. It also imposes measures to prevent the deposit of sand and other materials in storm sewers. To meet these requirements, some design measures include erosion fencing, temporary or permanent burial, and basins that can trap the various materials.
The BREEAM (Building Research Establishment Environmental Assessment) certification evaluates the performance of buildings on the management system, energy, health, well-being, pollution, transport, land use, biodiversity, materials and water. Points are awarded on each of these aspects based on the performance achieved. A weighting system makes it possible to aggregate these scores and obtain an overall score at the end. It is granted in the form of a certificate and can then be used for promotional purposes. Developed in the UK, the method helps construction professionals understand and reduce the environmental impact of buildings at every stage of their construction process. Using this method, the Building Research Establishment (BRE) is able to measure the impact of specific building materials in order to produce environmental profiles reflecting their performance in this area. It makes it possible to create environmental profiles for each material in the composition of a construction, on the basis of a life-cycle analysis assessment. LEED and BREEAM certifications have in common to propose a rating system. This feature, which is lacking the HQE certification, has the advantage of allowing comparisons between buildings in terms of sustainable development (green building) and taking into account the performance obtained in the asset valuation of the property in question