Nathan Howard / Bloomberg via Getty Images Composite building materials company Trex reported lower-than-expected quarterly results Key Takeaways Trex Co.'s results and outlook disappoint as spending on housing materials slows. The maker of decking products said the repair and remodeling sector continued to face weaker market conditions, and it expects that to continue. Trex Co. (TREX) shares sank to multiyear lows after the maker of deck-building materials posted worse-than-expected results and low ...