The Building Performance Institute (BPI) announced a new course this summer for individuals who perform building infiltration and duct leakage testing. The BPI Infiltration and Duct Leakage
ENERGY STAR for Homes program guidelines will transition to Version 2.5 in 2011. Many homes under construction right now will be required to meet the updated requirements! This article lists lists the most significant changes and describes how this will affect the certification process.
Our last Manual-J post focused on envelope loads and how important it is to properly account for them in your HVAC design. Now we will turn
Manual-S is being required by many building programs and local codes these days. The problem is, it’s really hard to tell whether the installing contractor
The Building Perfoarmance Institute (BPI for short) is perhaps the country’s foremost developer of home performance and weatherization protocols and standards – standards that save
Manual-J’s Required. 42 states have adopted codes equivalent to the 2009, 2012, 2015, or 2018 International Energy Conservation Codes (IECC). As a result, 29 states
Now that the new 2012 NC Energy Code requires every duct system to be pressure tested, there’s a good business opportunity for folks that are
More and more state codes are requiring room-by-room Manual-J load calculations as part of the permitting and inspection process. Virginia, North Carolina, South Carolina, Georgia,
