With new single-family housing starts up 16 percent from the previous year, 2013 brought some needed relief to a beleaguered industry. What did that mean for building products usage? After comparing data from our 2013 Annual Builder Practices Reports to the previous year, what we saw largely met our expectations. However, there were a few surprises that may signal some fundamental changes in builder preferences for new home materials. Take a look at what we observed for residential exterior materials.