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9 Answers

Has anyone built a south-facing roof on a building that's 45 degrees off?

I have the opportunity to add an attached garage to my house, and I'd like to provide a plaftform for solar PV on the roof (Zone 5, NW Ohio). The existing structure (and the entire town) is oriented 45 degrees off; that is to say, the street runs northeast/southwest. I'd be attaching the garage on the side of the house that faces southeast.

Asked By Andy Chappell-Dick | Jun 16 18
5 Answers

Attic and roof stack

Does this seem like it will work? Austin TX, Climate Zone 2A.

From inside to outside. Air barrier at the interior ceilings.

Drywall (or lath and plaster ceilings)
Blown-in Cellulose (~16 inches, but less over outside walls, as no raised heels)
Mostly solid wood board sheathing (from 1950s), one area of low slope plywood (~1.5 in 12).
Solitex Mento as roof WRB (or other vapor open WRB)
Counter-battens (1x material criss crossed)
Metal roofing

Asked By James Howison | Jun 14 18
9 Answers

2x6 stem wall detail options

Hello everyone,

I'm in the early stages of designing my future home and ran into a situation where I'm looking for some input. I'm wondering what the best option for me would be at the intersection of the radiant floor slab, foundation stem wall and 2x6 exterior wall. I've attached the 3 options I'm considering.

Asked By Sturg | Jun 7 18
9 Answers

1 1/2 story farmhouse in British Columbia

Hi, I'm looking for some thoughts on our current design for our 2000 sqft home.

Asked By Michael Blake | May 22 18
11 Answers
7 Answers

Zone 3 re-siding - exterior insulation options

Hi everyone - my name is Loren. I’ve learned a ton about energy improvements for an older home from this website – thank you for creating such a valuable resource!

I’m seeking guidance and advice on alternatives for adding insulation and improving air/vapor sealing to my home while some walls are being re-sided. Some details:

• 1964 construction, Climate zone 3 (Atlanta), 2 stories (2,330 SF), 600 SF basement w/adjacent
crawlspace. Graded “leaky” in energy assessment done 5 years ago (CFM50 = 5050 N = 17.2
ACH natural .71)

Asked By Salaryman | Apr 9 18
3 Answers

I'd like some comments on this proposed detail for an existing building's 2x6 stud exterior wall.

We want to add insulation value to an existing wall and be sure to have a dry wall as well. May I have your critique of this detail. How will it perform? Any suggestions for alterations?

Asked By user-6825743 | Apr 4 18
7 Answers

Minnesota shed roof on a narrow lot: Attic venting problems

Our architect designed home is under construction. Its a 27' wide (on a 40' wide lot) x 49' long simple shed roof. The original plan was to have soffit vents on the low side eave and the high side eave and passively vent the roof. The only thing not shown in the images linked below is that we planned to spray foam the low heal to get R55 (not possible with cellulose alone). This low heal was a result of the unfavorable code related to shed roof height:
http://www.dudebrowtf.com/images/ProjectHouse/atticvent1.jpg
http://www.dudebrowtf.com/images/ProjectHouse/atticvent3.jpg

Asked By User-7029162 | Feb 28 18
9 Answers

Innie/outie window operation

I am familiar with much of the conversation regarding thermal performance as it relates to innie/outie windows (http://www.greenbuildingadvisor.com/blogs/dept/musings/innie-windows-or-...). My concern here relates more specifically to operation of innie/outie windows as well as "middies".

My concern is as follows:

It seems that "conventional" windows on regular houses are either double-hungs, sliders, single hungs, casements, or awnings, all of which swing outward or slide in one plane.

Asked By Ethan T | Feb 20 18
2 Answers

Manual D with slim ducted minisplit indoor unit?

In trying to use manual "D" to size the ducts for my ducted mini splits I've generated some questions.

To start out with what is the effective length where the air handler's output goes straight into the main trunk duct, there is no such example, the examples all show a change of direction, and I assume, with reservations, that the duct starts at the boundary between the air handler and the trunk duct?

Asked By Jerry Liebler | Jan 28 18
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