Community: Plans Review

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2 Answers

Shop with radiant slab heat: Do I need slab insulation?


I'm planning to build a 40x96 shop with in-slab radiant heat. I will likely only heat to 55 degrees. I live in Central ND, zone 7a. Wondering if it's necessary to use foam under my slab. Any thoughts?

Asked By Adam Emter | May 29 17
7 Answers

Airtightness review and OSB?

I'm finalizing the specs on our energy efficient home and am looking for your comments on the following details:
Wall: metal siding, strapping, 3" Roxul Comfortboard, Tyvek Commercial WRB, 3/8" OSB with taped seams, 2x8 studs 16"OC, Roxul, 6mm poly AVB, 2x4 stud service cavity, 1/2" drywall.
My biggest concern is the lack of air tightness of the OSB, and if that will be solved by taping the seams and using the Tyvek Commercial wrap.

Asked By Terry Goodwin | Apr 17 17
19 Answers

Roof/Wall Connection on a Pretty Good house, Zone 5A, Cold 6000HDD

Hello everybody. I've been perusing GBA for a while trying to come up with a wall for this 2 story, ~2000SF house that makes sense, is not too expensive, and is durable. I'm trying to avoid using foam unless absolutely necessary. In the attached drawing you will see my working idea for my roof and wall at the downward slope of what will be a shed roof (1 1/2" / 12" slope).

The basic build up of the wall is

  1. Painted GWB or Finish plywood (at some locations)
  2. 2x6 framed walls with dense pack cellulose
Asked By Ethan T | Mar 31 17
12 Answers

Critique this rough floorplan

We are in beginning stages of choosing an architect/project manager, but we have some wishes on how we want the floor plan to be.

Being amateurs, I'm sure there are mistakes. Please critique.

Our goals, wants and needs:

- make the house as small as possible, ut with enough room for everything we need/want
For example, we want a study, though that is not common practice here. We took that good practice from USA and like it a lot.

Asked By davor radman | Mar 28 17
12 Answers

Green & Passive design

As an architectural designer, I have long been interested in green and passive home design, having dabbled and dreamed. I now have a project that will encompass both, as well as the use of SIPs for roof and walls.
Simple questions with elusive answers:
1. Where can I find the angles of the sun at June 21 & Dec. 21 for a specific latitude?
2. How do a loft area and high vaulted ceilings fit in? It seems that both the Window to Wall ratios, and mechanical load numbers are all calculated using square footage. Surely ceiling height and volume have an impact.

Asked By Becky Nemetchek | Mar 29 17
6 Answers

Ideas for this floorplan Pt. II

....and I'm back! The system wouldn't let me reply to my own thread. It kept marking my reply as spam.

It's been a while since I posted an update to my thread but here it is.

I have processed all of the feedback given to me and applied this to my original wants. The idea is an open plan, living areas to the south, concentrate plumbing in one area, large master with walk-in shower, tub, master bed with walk-in closet, large kitchen, et cetera and this is where I am. I moved the master closet back up to the north wall again and I've added lots of other closet spaces.

Asked By Drew Baden | Dec 14 16
21 Answers

Solar glazing

With all of the excellent advice I've been given, I decided to join GBA today to show my appreciation and support.

In my opinion, the value I've gathered thus far exceeds the amount of the membership cost.

At any rate, many of you have seen my plans that I'm creating and now I'd like to discuss my window options. I have decided to utilize the attic space as a bonus room and tossed a couple of windows up there.

I have my eye on Intus windows but I'll also price thermotech since they're geographically nearer to me. I'm still sourcing a manufacturer for the doors.

Asked By Drew Baden | Apr 8 16
5 Answers

Building envelope and insulation for new build holiday home

I am sorry this is so long, but your expert thoughts are greatly appreciated!
- In the planning stages of a two storey holiday home with an unheated garage below and 2 bedroom with living area and small bathroom on the second floor.
- 40 x 30’ foot print, about 800sq ft for the living area. 1:12 “Flat” roof
- Climate zone 4 marine (north of Vancouver, Canada). Temperature rarely drops below about 28F and the building will be unheated and unoccupied for long periods in winter. Summers are warm but typically not humid.

Asked By Quinn Sievewright | Feb 13 17
1 Answer

Insulating an historic house's attic

Hi all!

I live in Montgomery County, PA, which is at the northern edge of the 4-A climate zone according to the map on this site.

Asked By Robin Klingsberg | Jan 15 17
10 Answers

Construction Docs, quick review please

It's been a long journey but we're at the stage to begin construction in the next couple months. My architects did a stellar job combining our aesthetic vision with green energy design. For my own peace of mind I am hoping to have the experts here take a look at the construction details. Let me (and my builder, who will be dropping in on this thread) know if you have any major concerns with the construction details. The house is in 5A, oriented East-West (roof slope facing south). There is a wrap around porch, a root cellar beneath one side of the porch, and a walk out basement (south side).

Asked By Clara Kim | Jan 16 17
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