""It depends" is definitely the rule! I live in the MidAtlantic region so I deal with low Winter temps, high Summer temps, and relatively high humidity. I have implemented many projects to reduce air infiltration and improve shell…"
"Yes, please post details! Especially interested in financial aspects (estimated value prior to renovation, cost of demo/abatement, cost of renovations, etc.) as 1979 vintage residences were not known to have much architectural detail - so many…"
"Don - thanks for the additional detail and design info. I do understand cost decisions (there is a current blog on Fine Homebuilding that speaks directly to that decision) and also wonder if ANY current mechanical devices have the longevity desired.…"
"Don - Good work! Can you add more detail to what windows/doors you used? Maybe one of the reasons you did not test out as tight as expected was the use of double-hung windows (I see nine in the above photo which is just 2 sides) versus…"
"@Ted - unfortunately I have spent an inordinate amount of time thinking about this issue and all the variables leading up to it as well as ramifications of different variations on the status quo. The durability and energy efficiency of buildings…"
"@ Nate and Tony: what you are attempting to do is replace the run-of-the-mill "code" builders and remodelers with yourselves as the customers' agents (again, as per my previous comments). This is not a recipe for a whole-scale demand…"
"@ Nate Adams - "Is there a way to change this to a demand side solution so consumers drive the change?" Short answer - no. Not enough buying experience (either by individuals or their social networks) to differentiate between any quality…"
"This concept might make much more sense in a multi-unit situation like a condo/apartment complex where the individual homeowners have already lost much of their autonomy to the home owners' association. The greater number of units participating…"
"I had seen this episode on TV but did not remember the external roller shades. Even with triple-panes, I cannot help but think that whole sliding/fixed-glass wall is around R-4 (max) so they would definitely need extra insulation to make the whole…"
"Are you also going to seal/insulate the stair walls and treads? What about the mechanical connections (plumbing, HVAC, electrical)? It's just too hard and I have not yet seen a basement that is truly separate from the "conditioned…"
"A vertical curtain will not separate the upstairs from the downstairs. There is a whole horizontal plane at the ceiling that needs to be addressed. And then you need to address the stairs... Given the cost/complexity, it is usually far easier to…"
"It goes back to the project management axiom: Do you want good, quick, or cheap? Pick one.
If you just want to provide some venting with the existing situation, get the bendable foam air channels and live with the marginal insulation at the top…"
"These type vests have been used by motorcycle riders for many years. Consensus is that they work well in low humidity conditions; less so in high humidity conditions, but always need airflow to create the evaporative cooling. Not sure how this would…"
"Alan, it's not the source of the energy that's important - it's the amount of energy used that matters. If you reduce your energy loads (whatever they may be) you will be generating less carbon emissions (wherever they may be…"
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…"
A presentation by Greg Labbé in April 2014 on retrofitting vintage home for energy efficiency. He talked about basic building science, brick houses, movement of heat energy and moisture in and out of the house, air barrier and water barrier, house…