CtrlSpecBuilder, the website providing HVAC engineers with a productivity tool to prepare specifications quickly and accurately, recently celebrated its first year of being online. The website, located atwww.ctrlspecbuilder.com, is a free tool that prepares non-proprietary, custom specifications and follows ASHRAE Guideline 13-2000, Specifying Direct Digital Control Systems, as well as CSI MasterFormat for section 15900.