The National Association of Home Builders put together a study that totaled average life expectancies for various housing components.

To get this information, NAHB conducted a comprehensive telephone survey of manufacturers, trade associations and researchers to develop information about the longevity of housing components.

Many of the people interviewed emphasized that the life expectancy of housing components is greatly affected by the quality of maintenance. They also noted that changing consumer preferences can result in products being replaced long before — or after — the end of their practical life expectancy.

The Life Expectancy of Home Components white page covers the following products:

Appliances
Cabinetry and Storage
Concrete and Masonry
Countertops
Decks
Doors
Electrical and Lighting
Engineered Lumber
Faucet and Fixtures
Flooring
Footings and Foundations
Framing and Other Structural Systems
Garages
Home Technology
HVAC
Insulation and Infiltration Barriers
Jobsite Equipment
Molding and Millwork
Paint, Caulks and Adhesives
Panels
Roofing
Siding and Accessories
Site and Landscaping
Walls, Ceilings and Finishes
Windows and Skylights