[quote=“jfarsetta, post:66, topic:46400”]
All of this is pretty funny. Secretaries are now getting LEED designations, just by working for firms who do the designs, because with LEED, one needs to have participated in the design process.
If this is true, IT IS SAD!!! SAD!!! SAD!! When Joe Lstiburek (he or partner John Straube speak here every 2-3 years) was interviewed on local radio a year ago, he claimed the LEED program doesn’t work!
Many governmental agencies do not subscribe to either BPI or RESNET. The energy engineers, who specialize in this from an auditing and engineering (many are PEs and all are at least mechanical or electrical engineers with college courses in the latest in energy issues and design considerations) state emphatically that blower door tests are typically not necessary.
Most engineers and architects do not have in depth building science, etc. How are they going to set an airtightness spec for duct systems (I used to test new HVAC systems also)/ building enclosures and then know the spec was met…just have a look at it??? Somewhat like a policeman without a radar gun trying to state in court, when dealing with a speeding charge, that he knows what going 120 mph looks like.
If you go back to the ASHRAE “Fundamentals” volume of 1977 and before, you will see that the “crack loss” method for determining air exchange rates as part of the process for properly sizing HVAC equipment was all that was offered. Calculate all the crackage around windows and doors, give it a pre-selected value of leakage per lineal foot and voila…you had a quantity that really didn’t mean much!!! As blower door testing became “the method”, it was found that windows and doors were only responsible for 6-22% of all air leakage!!! What about all the other leakage that the crack loss method did not account for.
In 1981, I believe, fan pressurization was added to the Fundamentals volume. In 1981, I purchased a blower door to sell air sealing work as an add-on to our blown insulation service. I went to the first full service energy consulting engineering firm (in a larger city close to our town) to try and get them interested in using our services…but with no luck!! About 7 months later, I got a call from one of the firm’s partners… “Could I come to the monthly ASHRAE chapter meeting and speak about the blower door and air leakage measurement”. The rest is history. We became a select bidder for all the retrofit work they specified for school boards etc. although we did not live in their jurisdiction!!
I have found over the years that, in general, engineers/architects picked up the finer points of energy efficiency, IAQ, etc later than those passionate about it…and I find they are the hardest group to teach new ideas to. From my own example: I have no degrees but (1) in 1990, I was hired by an engineering firm to set up and manage an IAQ and TAB (Test, Adjust, Balance) subsidiary; in 1992, I moved to the province I now live in to run the first set of energy regulations; in 2003/2004, I taught the building science course at the local university architectural faculty while the prof was away for a 2 year leave of absence…he was at MIT doing a Phd in building science.
Canada’s R2000 program was mostly built/improved at the bureaucrat/builder level except that Joe Lstibutrek had a hand in setting up the original standards. The first engineer (he’s now with one of the BUILD AMERICA partners) I dealt with in the program (1989-90) had to give “special certification” to 3 houses where my company installed HRV systems that were too small and did not meet program specs then. By today’s specs, these HRV systems are now oversized for the the homes they’re in!!
BTW, Joe, the earliest blower door set-up that I’ve seen mentioned was assembled and used by Texas Power and Light in 1968 to investigate air leakage in relation to high AC bills. This is not a new phenomenon. Get on board!