Chapter 9, Problem 4P

Examine the properties of wood, aluminum, and extruded vinyl as they relate to household window frames. Discuss the pros and cons of each, considering cost, ease of manufacture, and aspects of performance, including strength, energy efficiency, thermal expansion and contraction, response to moisture and humidity, durability, rigidity, appearance (the ability to be finished in a variety of colors), ease of maintenance, property changes with low and high extremes of temperature, and any other factor that you feel is important. Which would be your preference for your particular location? Might your preference change if you were located in the dry southwest (Arizona), New England, Alaska, or Hawaii? Can you imagine some means of combining materials to produce windows that might be superior to any single material? Which of the preceding features would apply to residential home siding?