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3 Answers

How are dome homes insulated?

Should I consider it like a vented attic?

In General questions | Asked By Fortneri | Feb 7 18
7 Answers

HRV for fumes

I saw a suggestion elsewhere which seemed to make a little sense, and I wanted to run it by folks more knowledgeable about HRVs. The idea is to use an HRV to vent solder fumes to the outdoors.

In Mechanicals | Asked By John Ranson | Feb 6 18
2 Answers

Total harmonic distortion (THD) of portable generators

I'm looking for some insight on the total harmonic distortion (thd) metric for portable generators. I currently own a new Westinghouse WH7500E Generator which is 7500 continuous watts and 9k peak watts. However, it has come to my attention that it has a 9% thd. As such, I've become a bit paranoid that it will do damage to the electronics in my home and fail to adequately operate the variable speed blower on my furnace.

My panel is wired with a 30amp inlet and an interlock kit.

In Mechanicals | Asked By BuildingNewb | Feb 8 18
2 Answers

Insulating rim joist sitting on brick veneer

Hi All,

Looking for advice as to how to handle insulating the rim joist on a CMU-Brick Veneer assembly.

House is a 70's split level. Lower level is 6" CMU with Brick Veneer. The floor joists rest on 2x6 top plates, and extend past the cavity to the rim joist which sits flush with the exterior face of the brick. Fiberglass batts are haphazardly stuffed in the space now. The plan was to do the often-prescribed rigid foam sealed with spray-foam, but i'm now unsure as to how to handle the open cavity separating the CMU wall from the brick veneer.

In Energy efficiency and durability | Asked By Alex Burkhardt | Feb 7 18
6 Answers

EPS foam for unvented cathedral ceiling

Hi. I recently framed my roof with 2x12s for a cathedral ceiling. It's a simple house, 20'x36' footprint with a loft. We have no eves in the design, partially so I could get a continuous moisture barrier and aesthetic. The exterior walls are a double 2x4 wall.

In Energy efficiency and durability | Asked By Matt Melton | Feb 7 18
11 Answers

Advice on open cell in exterior walls, zone 5


In General questions | Asked By css1813 | Jan 31 18
15 Answers

Insulating a walkout basment

I'm trying to insulate my walkout basement in Chicago so Zone 5. I read through bunch of the posts but just need some clarification if what I have gathered is correct. I'm attaching a diagram to show exactly what my plan is but just need to figure out if the section above foundation/ground will have any issues with this setup.


In Energy efficiency and durability | Asked By tkaj | Jan 19 18
18 Answers

My question is regarding exterior mineral wool insulation and if there is a minimum thickness (R-value) one should install

Hi. My name is Mike Precious for nelson BC Canada. My question is regarding exterior mineral wool insulation and if there is a minimum thickness (r value) one should install. Should i follow the same guidelines as for foam insulation to keep the sheathing safe?

Thanks for the info and for this great and informative site.

In General questions | Asked By Micahel Precious | Feb 4 18
5 Answers

Zone 4A walls

Hey all,

In Energy efficiency and durability | Asked By Chris King | Feb 6 18
22 Answers

Workshop heat pump

Hi everybody! I have a quick heat pump question, and hope somebody might have some insight, experience, or opinions to share in response.

We live in Nova Scotia, Canada, a mid-temperate climate zone with average temps of -8C during our coldest months (January/February) up to 23C in July/August.

In General questions | Asked By Benjamin Wooten | Jan 26 18
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