Construction of a building imposes loads on the environment: resources depletion and contamination of air, soil and water, etc.
The environmental impacts of building construction, partly caused by large consumption of energy, are imposed during the whole life cycle of a building.
Changes in construction, along with changes in design and selection of building materials, are essential to the success of national efforts to minimize environmental impacts and reduce overall energy use and greenhouse gas emissions (GHG).
The contractor has access to information regarding energy consumption during construction of the project to identify activities that consume most energy. The energy profile for a project is developed. Contactors focus on energy intensive activities and develop energy efficient means and methods to minimize energy consumption during construction.
Ujenzi wa jengo unaweka mzigo juu ya mazingira: uharibifu wa rasilimali na uchafuzi wa hewa, udongo na maji, nk. Madhara ya mazingira ya ujenzi wa jengo, kwa sehemu husababishwa na matumizi makubwa ya nishati, huwekwa wakati wa mzunguko mzima wa maisha ya jengo. Mabadiliko katika ujenzi, pamoja na mabadiliko katika kubuni na uteuzi wa vifaa vya ujenzi, ni muhimu kwa mafanikio ya juhudi za kitaifa za kupunguza athari za mazingira na kupunguza matumizi ya jumla ya nishati na uzalishaji wa gesi za chafu. Mkataba wa ujenzi una uwezo wa kupata habari kuhusu matumizi ya nishati wakati wa ujenzi wa mradi ili kutambua shughuli ambazo hutumia nishati zaidi. Profili ya nishati kwa ajili ya mradi ni maendeleo. Contactors kuzingatia shughuli nishati-intensive na kuendeleza nishati ufanisi njia na mbinu ya kupunguza matumizi ya nishati wakati wa ujenzi.