As homes become increasingly tight, mechanical ventilation increases in importance. National building codes, standards and programs are requiring the design, installation, testing, and documentation of ventilation systems. Participants in this course will come away with a better understanding of the science behind and mechanical ventilation technologies. Topics will include using the latest ASHRAE 62.2 Standard for sizing the systems for the right airflow for whole house and local ventilation, use of the infiltration credit, selecting the system, differences between ERVs and HRVs, use of controls, and installed system testing and documentation. Intended Participants: building performance & HVAC contractors, and those interested in building science or becoming better building performance contractors Trainer's Biography: Paul H. Raymer Author of the Residential Ventilation Handbook Member of the ASHRAE 62.2 SSPC since 2002 Chief Investigator, Heyoka Solutions, LLC Falmouth, MA Paul H. Raymer has been working with building science for more than thirty years. He is the author of the Residential Ventilation Handbook (McGraw-Hill, 2010) and writes a regular tool column in "Home Energy Magazine". Formerly the IAQ liaison for the Home Ventilating Institute (HVI), he has developed more than twenty ventilation related product lines and served as a consultant for a wide array of ventilation product manufacturers including Broan-NuTone, Air King, Panasonic, APV Vent Axia, Greenwood Airvac, and Fantech. He has designed ventilation systems for home builders including Acorn Homes, Deck House, Continental Homes, Ryan Homes, K Hovnanian, and Beazer Homes. He has taught ventilation courses across the country at weatherization programs and conferences, at the Harvard Graduate School of Design and the University of Massachusetts at Dartmouth. He is BPI Envelope, Building Analyst, Heating Professional and AC/Heat Pump certified, a BPI Super Proctor, and a certified HERS Rater, and a member of the Society of Building Science Educators (SBSE). He is also a Certified IREC/ANSI Assessor.