Community: Plans Review

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6 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:

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 ( 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
30 Answers

Any recommendations on new house plans?

My family is in the process of our first new home build and I've been lurking on GBA for the last few months gathering as much information as I can. We recently got the first round of plans for our home and I was hoping that some of the experts here might be willing to take a look at them and provide suggestions for improvements. We're not going for anything like a Passivhaus but are definitely interested in green improvements that would improve the quality of living and/or offer a short to medium term payback.

Thanks in advance!

Asked By Ryan Melena | Jan 25 18
6 Answers

What issues do you see here?

Hi there,

Im building a cost effective shouse in northern British Columbia, living in Zone 7A with 5040 degree-days (no rainscreen or seismic requirements) and planning on building a workshop with dwelling above in the summer.

I need some experienced folks help who have livedin or built similar shops with dwellings to tell me what you would change. I plan on installing a 1.5" concrete topcoat in the suite. Both floors to have hydronic heat. Windows are triple with R8.3 ratings, U 1.02.

Asked By User-6964558 | Jan 18 18
33 Answers

120 year old uninsulated home siding retrofit

Hi all,

LP Smartside 76 series 8” 7/16” lap siding has been purchased by our contractor and now I am finalizing details.

Please review for compliance, efficiency and best practices and fill in my blanks. ;-) We plan to live here for a long long time and want to make sure we do it right.

Strip cedar shakes and old lap to 3/4" diagonal bracing or studs if bracing is rotten.
Replace rotten diagonal bracing with __?__.
Install tyvek as an air barrier
Install 1.5" R6 Roxul Comfortboard with 1x4 strapping screwed 1.5" into studs 16" OC

Asked By bridgette downer | Jan 10 18
8 Answers

Layout for ducted minisplit?

My house's floor plan has too many partitions to depend on comfortable heat distribution with ductless so I'll take the slight efficiency hit to use duct ed distribution. The plan is to keep the ducts inside the "conditioned" envelope and very simple and all in the ceiling service cavity, both supply and return for the air handlers. My house is a rectangle with the long side running east to west. A central hallway divides the north and south areas. My proposed layout uses two air handlers, two zones, one "bedroom" zone on the east and a "daytime" zone on the west.

Asked By Jerry Liebler | Jan 13 18
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