Green buildingrefer to building designs and processes used that are environment friendly. Such sustainable construction are resource efficient throughout the entire lifecycle of the building. These construction use resources like water and energy efficiently, protect occupant health, reduce waste and pollutants and thus reduce harmful impact on the environment. The materials used for green constructions are sourced from renewable resources like forests and recyclable waste like old newspapers etc. Few of the commonly used materials are wool brick, sustainable concrete, solar tiles, paper insulations, triple glazed windows, bamboo etc.
The global green building material market can be segmented on the basis of type of products such as structural products (recycled concrete, FSC-certified lumber, FSC-certified wood panels etc.); exterior products (residential windows, green roofing, green doors, green siding); interior products (green floor coverings, insulation, gypsum board), permeable pavements; building systems (residential HVAC systems, nonresidential glazing, plumbing fixtures & fittings, residential lighting fixtures) and solar power products. Based on applications the report is segmented into residential buildings and non-residential buildings.
Typically recyclable building materials are used in structures like kitchen countertops, drywalls, plastic lumbers, landscaping materials, glass tiles, steel structures, carpet and carpet padding. Green building materials are selected based on certain criteria like resource efficiency, indoor air quality, energy efficiency, water conservation capacity and affordability. The typical benefits achieved from using green building materials are reduced maintenance costs, conservation of energy, improved productivity, reduced construction cost, sustainability and flexible designs.
Extensive research over the past years has indicated that use of non-renewable resources results in increased cost, pollution and energy consumption. The factors which are driving the use of green materials are easier maintenance, efficient technologies, improved return on investment, better indoor air quality, temperature moderation and waste reduction. As these materials are energy and water efficient, they lead to healthier lifestyle and improved health. However certain factors which may act as a constraint to their use are high initial cost, need for highly skilled labour, lack of availability of suitable materials and prolonged construction time.