I assume one of your advisers did a blower door test (preferably also with IR camera) prior to the work. It would be real interesting to see before/after readings and images. You may also have much more leakage at non-ceiling locations than you…"
The perceived lack of building science training is a "red herring" promoted by those whose interest is in sustaining their business model of providing training courses. There is actually a fairly large number of building science…"
Sorry - no photos. But it was similar to many other projects easily found. I used multiple, overlapping layers of 2" polyisocyanurate (2 on the sides, 3 on the top) glued together with urethane construction adhesive (I also used duct…"
"My parents built a split-level house in the '60s that had a large, belt-driven whole house fan with louvers in the ceiling of the 2nd floor. It was right beside the pull-down attic stairs. In the '80s they had AC installed (in the attic)…"
"I think the comments by Maria and Dennis have some merit for my own situation. I originally used very low-priced LED bulbs from a big box store and 1 unit did not work after 1/2 hour of use. I happened to purchase a 3-pack so I replaced the…"
"I also thought that, but I tried to put a CFL in the A-19 outside fixture at my daughter/son-in-law's house and it did not work - at all. Tried it in a table lamp and it worked fine. Put an incandescent bulb in the outside fixture and it worked…"
I'm coming at this issue from a national perspective. If the USA were leading the world in energy efficiency and housing comfort then I might agree with you. But a couple improvement projects here, a couple gut/rehabs there, while millions…"
""I believe it is our job to educate the consumer, understand the problems, help them develop a budget for solving problems, and develop designs that leverage their budget and EE opportunity into the most comprehensive and well tailored…"
"Consultation and education are all well and good, but we have found that the "cost-effective" point of remedial recommendations needs to have a 5-year ROI. Anything longer and the customer loses interest. And education will not reverse the…"
"You did not add the (other) expected yearly running costs for the ventilation unit (additional air conditioning costs for heat/coll/dehumidify, any replacement parts/service, etc.) in the initial SIR computation; you only talk to the fan electrical…"
PA (like most states I presume) is a hodgepodge of compliance. All depends on what the local building codes require. One nearby township still does not require duct testing for new construction. Most have adopted most/all of the IECC 2009 but…"
Good work! I know it's frustrating that you put so much work into your home and it now only tests out as "average" (not even "code"). Not knowing all the particulars I can see some areas you might want to address to…"
This will never work with finish carpenters as they have different criteria to judge their work. For an example - check out the This Is Carpentry instruction on installing baseboard trim and inside/outside miters. It is sometimes necessary to…"
Yes - you and I are in agreement. My response was more for Kaushal; doing a renovation for energy savings is not easy nor often a good payback. My brother and sister-in-law live outside Oakland in a '50s ranch that has had little thermal…"
OK - but what about the most common air/thermal leakage point in the CA homes I've seen: the completely open crawlspace (often with suspended return ducts)? Or the ceiling perforations (access hatch, recessed lights, attic supply duct…"