CONFERENCE REPORT: THE SYMPOSIUM ON AIR INFILTRATION, VENTILATION & MOISTURE How Tight Is Too Tight? We've figured out how to build tight houses. Now how do we make them livable? by William Rose "How Tight is Too Tight?" was the title of a paper delivered at the BTECC conference held in Fort Worth, Texas, in December. At past conferences, the problem was how to make buildings airtight. Now that the experts have mastered that, conference attendees were asking-what do we do now? The bear went over the mountain, the bear went over the mountain... Most researchers of building performance network through BTECC (the Building Thermal Energy Coordinating Council). These researchers write standards, product literature, and codes, They initiate energy-conservation programs and evaluate