Community: General questions

[Click map to enlarge]

Please register for a free account or sign in to ask and answer green building questions.

The usual rules of courtesy apply:
1. Be nice.
2. If you can't be nice, be polite.
3. If you can't be nice or polite — well, please be brief.

To attach a photo or illustration:
Under the box labeled "More explanation," look for the words "File attachments."
Click that, and you should be able to attach a photo.

Thanks for joining the conversation!

5 Answers

Words cannot express the heartbreak we feel at the tragedy in Newtown.

As many of you know, Taunton Press, the publisher of Fine Homebuilding and Green Building Advisor, is headquartered in Newtown. The lives of Taunton employees are firmly rooted in the Newtown community, and our lives are all intertwined. We are united by all kinds of connections -- as colleagues, friends, family, and Americans. Our hearts are broken, and our thoughts and prayers are with you.

Asked By Martin Holladay | Dec 15 12
3 Answers

Would it be foolhardy to not damp/waterproof our foundation? We have a very sandy site and low water table. We will be putting 6 inches of foam on the foundation (the foam is ship lapped).

Asked By jessie pratt | Dec 13 12
2 Answers

I'm designing a single story house in SE Alaska (zone 7) and planning on using SIP construction for the floor and exterior walls. I'm also thinking of using a scissor truss so that I can have a cathedral ceiling in the front and an attic in the back section of the house. I'd like to use SIP panels for the roof, or sheathing, 2x2" insulation sheets, sheathing and standing seam metal roof. We will be taping the panel joints (and everywhere else) as well as foaming. How do I run ducting for an HRV, as I expect I will most definitely need one?

Asked By Sylvia Ettefagh | Dec 12 12
4 Answers

Love that GBA presents on so many topics. Is it possible, though at the conclusion of a thread for GBA advisors to condense many of the varying inputs into some kind of general consensus guidelines on the topic? Perhaps a detailed library could be referenced with more than drawings.

Is it just me or do other people stop when they see a thread they want to read because they're not sure if they have the time and stamina it will take to delve into all the asides and redirects that will likely leave them with more information but less resolved on the topic.

Asked By tom ruben | Dec 8 12
3 Answers

Beginning at 8:00 a.m. on Thursday December 6, GBA Pro members can watch a live video feed of a seminar by John Straube:
Building Science Expert Session.

Asked By Martin Holladay | Dec 6 12
11 Answers

Article written 10+ years ago about P.U.D. (planned unit development) of small homes in Portland, Oregon.
Need copy of article, please.
Sustainable homes on 1.0 acre infill lot.

Asked By Douglas Powell | Dec 4 12
1 Answer

Instant blogging! Allison Bailes has already posted a summary of Joe Lstiburek's December 5 presentation on spray foam -- yesterday's Building Science Corp. seminar.

Yesterday's seminar also included presentations from Mac Sheldon (from Demilec), Mark Bomberg, Rick Duncan (from the Spray Polyurethane Foam Alliance), Xuaco Pascual (Honeywell), Mary Bogdan (Honeywell), and Paul Duffy (Icynene).

Asked By Martin Holladay | Dec 6 12
3 Answers

Help, the windows are here! so i'm all geeked out to check them out and install them. we wrapped the entire house, including the rough openings, in tyvek, BEFORE the windows arrived. our plan was to cut open the wrb, flash the sill with a piece of bevelled siding and flexwrap, then install the window. tyvek recommends making an i-cut in the wrb (one vertical cut in the middle from header to sill and two horizontal cuts from side to side along the header and sill) and wrapping the flaps of the tyvek around the sides of the window and fastening them.

Asked By erik olofsson | Dec 5 12
6 Answers

They said they don't care if it meets code, or even if it is functional. If there's a pellet stove, there is no insurance policy. How can I deal with this?

Asked By Michael Mertinooke | Dec 4 12
40 Answers

I am wondering deeply, and this question makes me doubt all wall designs.

Where does all the humidity go in a super sealed structure ?

Let's assume that a residential house has an almost perfect water vapor barrier setup
and or is very tight ( my personal example is an ICF house ), what happens to all the daily generated humidity by the occupants ??

I understand that nothing is completely vapor diffusion proofed, but if slow enough,
would the humidity level rise without stopping ?

I am asking this because of the following situation ...

Asked By Jin Kazama | Nov 29 12
Register for a free account and join the conversation

Get a free account and join the conversation!
Become a GBA PRO!