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4 Answers

Hope other readers find this thread useful. I know I'm going to use it. (I've seen them be incredibly popular on other boards.)

When, god help you, you just can't find the specific information you're looking for, but you know it's here somewhere.

If the search function works properly, you should be able to find this thread by searching "find the thread"

And then follow-up questions, if any, can end up in the appropriate thread.


My first where's-that-thread question:

In General questions | Asked By Minneapolis Disaster, 6B | Oct 2 11
7 Answers

We installed rigid foam board on interior ceilings, gun foamed all seams and edges, and now installing eco touch insulation without kraft paper. We could not get inulation for 2x4 walls without kraft paper, so we remove the paper before we install, thank you

In Energy efficiency and durability | Asked By louie rodriguez | Sep 30 11
3 Answers

I am beginning a LEED targeted project and have an rater on board. I also have an engineer who I am using, but this framing is not something he has done before. Is there a resource with standard calculations for load and sheer that I could point him towards?

In Green building techniques | Asked By Cleus Dalglish-Schommer | Sep 30 11
5 Answers

Water heater to be installed in a heated basement and the home has 4 people living in it with 2 full bathrooms. Can I use the heat pump to dehumidify as well?

The location is eastern PA.

In Energy efficiency and durability | Asked By DJ Tejeski | Sep 29 11
4 Answers

Our installer has so far only installed dampers in the supply ducts. Wouldn’t this cause some pressure imbalances in the off zone rooms when the blower is running?

In Mechanicals | Asked By David Adams | Oct 2 11
3 Answers

Approxiamately 1 year ago, I was involved in a home basement renovation that included spray foaming the headers throughout the basement as well as insulating all the exterior walls(2 out of the 4 were exterior) of a converted storage/cold room(appr. 5'x 12'. In the last month or so, the home owner discovered mold along the entire length of the baseboard and part of the way up the wall, on the longest of the 2 foamed exterior walls, approx. 12'. The ext. walls have about 4-4.5" of closed cell insulation and there was also a heat vent installed, dropped to just above floor level.

In General questions | Asked By Ken Wigboldus | Sep 29 11
1 Answer

My sun room is quite cold in the winter, and I am sure it is not just due to the amount of window to solid wall ratio. I don't really have any room to work above the area, do to that it is a roof over a roof situation. The sun room originally had a flat roof that was a patio on top. At some point a pitch was added sloping away from the house, and eliminating the patio. I have taken a peak up through a repair patch to see that I had about 2 inches of batting, and then the underside of the original tongue and groove roof.

In Energy efficiency and durability | Asked By Chris Snelgrove | Sep 30 11
3 Answers

It's getting close to ice damA ridge of ice that forms along the lower edge of a roof, possibly leading to roof leaks. Ice dams are usually caused by heat leaking from the attic, which melts snow on the upper parts of the roof; the water then refreezes along the colder eaves working it's way back up the roof and under shingles. season for those of us in cold climates.

Last winter, I spent a lot of time hacking my neighbors out of their house because ice dams on their breezeway roof flowed over their gutters and froze the side door shut.

In Energy efficiency and durability | Asked By Daniel Morrison | Sep 28 11
20 Answers

Hello GBA,

I am in Northern NJ, and I have a question on the proper way to retro-fit a finished 3rd floor with insulation, for both comfort and energy efficiency.

In many old colonials and victorians in my neck of the woods, what was once un-finished attic space has been converted to living space. The rafters typically have had gypsum board installed, with a flat ceiling framed above and kneewalls dropped, leaving kneewall "crawlspaces" to either side. The floor of this newly finished 3rd floor is typically un-insulated, as is the case with most homes of this era.

In Energy efficiency and durability | Asked By Grant Salmon | Dec 28 10
10 Answers

I am wondering why EIFS is almost never mentioned in this website. It seems to offer it all: a spray-on or rolled-on WRB that also performs as an air barrier; a drainage plane; outsulation that also provides a thermal break; a finish surface that doesn’t require painting. Talking to my local installers, I’ve learned that 4” of foam costs little more than 1”. Adding 4” of EPS to a 2x4 bay with dense-pack or sprayed cellulose results in about an R-29 wall assembly that is relatively economical.

In Green building techniques | Asked By David McNeely | Sep 27 11
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