Marc Rosenbaum - who deserves a place in the building-science-experts hall of fame, alongside the likes of Joe Lstiburek, Terry Brennan, Bill Rose and John Tooley - is running  a 10-week online course on Deep Energy Retrofits. If you want to get serious about transforming exisiting buildings into high-performance buildings, you can't go wrong, in JLC's estimation, with this course.

Marc is a rare engineer who speaks in practical terms. You won't get a lot of disconnected energy theory. You will get a lot of attention. Just because it's delivered online does not mean you get a push-the-button video that will put you to sleep. You get Marc, talking to you via a discussion board along with engaging, self-paced videos; he'll answer your questions but he'll also demand a lot of your participation. It's a serious course. It also comes with a serious price tag - $895, if you're in time to get the $100 discount. But as in all things, you get what you pay for. If you're serious about learning how to implement energy upgrades in residential and commercial buildings, you wont be disappointed.

Click to learn more and register.