Whether recovery means putting damaged homes back together or building new ones, the process creates numerous opportunities for incorporating sustainable technologies. Energy efficiency and passive solar technologies can be incorporated into new or renovated buildings. The site design for new buildings can take into account the natural topography and provide for solar access, and appropriate landscaping can provide shading during the summer and wind protection during the winter Recycled and resource-efficient products can replace their virgin counterparts to conserve energy and landfill space. Energy-efficient windows and increased insulation levels can retain heat during the winter and reflect heat during the summer. Increasing your home’s airtightness will lower its space heating and cooling requirements, allowing you to install a smaller, less expensive heating or cooling system.