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6 Answers

Is the technique easy to learn? How many shims crews would you use on a window?

In General questions | Asked By David A Flannery | Aug 18 14
13 Answers

New construction, zone 4 on the line of zone 5 (47460).

Bonus room over garage with radiant floor heat in concrete floor.

My floor system has some areas that are blocked off with framing to add support to the ends of the floor in the bonus room. What can I do to insulate those blocked off areas before the ceiling goes in? Would 3.5" of open-cell be enough tot help with keeping the bonus room warm or would it completely block any benefit of migrating warm air from the below garage floor?

In Energy efficiency and durability | Asked By Anthony Hughes | Aug 18 14
3 Answers

Having IAQ problems with a 5 year old home on the coast in South Carolina. We had the attic foamed with Demilec Open Cell Foam and crawl space done with closed cell a few months after we moved in. Blower door tests performed after the foaming (forgot the #) revealed the home is very tight, and in summer months we are experiencing the "Fishy" odor when the sun beats on the house and the AC is running on the second floor, first floor not too bad, also not too bad during the winter.

In General questions | Asked By Tom Oelschlager | Aug 19 14
12 Answers

New construction zone 4 on the line with zone 5 (47460)

Bonus room over garage with radiant floor heat in garage floor

2x12 bottom cord in the floor and 2x8 rafters.

I plan to pre-hang drywall on the knee wall in the bonus room and spray 3.5 inches of open cell foam in between those studs. Then I plan to install 1.5 inch fiberglass faced PolyIso rigid foam on the attic side of the knee wall and tape the seams.

In Energy efficiency and durability | Asked By Anthony Hughes | Aug 18 14
12 Answers

I will be having my attic sealed and insulated with closed-cell spray foam. However, the design of my house makes this a bit more complicated because my roof cuts into the second-story ceilings at the front and rear edges of the house (will make more sense if you look at the attached pic).

Above this part of the ceiling, there is only some very old batt insulation (less than R-8) and the roof deck. The house doesn't have eaves/soffits, so there is no venting in this area.

In Energy efficiency and durability | Asked By Matt Culik | Aug 14 14
5 Answers

For a large scissor truss (top chord 31" above bottom chord), we want around R-70 but no more. How do you 'contain' the blown in, or how would you use batts?

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In GBA Pro help | Asked By David A Flannery | Aug 18 14
8 Answers

I want to install a secondary heating system (wood stove primary). Cold climate. What is best ductless heat pump for an open house plan, 2-story?
Are heat pumps better than ETS systems?

thanks,

kelly

In Energy efficiency and durability | Asked By Kelly Mitchell | Aug 16 14
2 Answers

HI all

Thanks to Dana and Martin (and others) for earlier comments and guidance on my new house build. To be filed under the you cant make this $hit up, it burned down right before we moved in (VOC spontaneous combustion - re stain rags on the pine ceiling/walls really can occur).

soooo, we get to take apart what we just built and analyze it. and improve upon it the next time (deconstruction under way now, framing to start about labor day).

In Green products and materials | Asked By pat rowland | Aug 18 14
5 Answers

I was speaking with my passive house consultant the other week, and she expressed concerns about boring critters and subsurface rigid insulation. She had such an experience with some insulation in her garden (It was put in one season and removed at a later time as she got back to completing the project.)
Now, I know all about the ate/termite protection used in these insulation products, but what about larger critters that would love to have a warm dry home?

In General questions | Asked By Steve Young | Aug 16 14
5 Answers

I just stumbled upon a type of clay brick that is apparently gaining popularity in Europe but seems totally unknown here in the USA. Example: http://www.juwoporoton.com/products/

In Energy efficiency and durability | Asked By Nathaniel G | Aug 16 14
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