Homeowners can incorporate many aspects of energy-saving, sustainable materials into their outdoor living space, just as home builders have embraced them in construction projects. 

Often, green materials are less expensive in the long run because they will save energy or have durability that won't require consumers to replace them too frequently. Weather-resistant patio furniture sets, for instance, use materials that prevent sun or water damage. Outdoor chaise lounges can be outfitted with all-weather fabrics on cushions that do the same thing.

One of the easiest additions to a patio or deck is LED lighting, which is characterized by very long service, high energy efficiency and low operating temperature. With no environmentally hazardous materials or harmful UV emissions, these energy-saving lights are part of the growing green movement.

When homeowners plan a major project to create an outdoor "room," they should consider using modular construction. Depending on location, ModularHomesNetwork.com estimates that modular construction costs $50 to $80 per square foot - not including the cost of property - compared to building costs for on-site housing construction of $80 to $150 per square foot.