Q&A: A Forum for Green Building Experts and Beginners

Q & A Instructions

[Click map to enlarge]

The GBAGreenBuildingAdvisor.com web site has a wealth of articles on a wide variety of construction topics. Before posting your question, you may want to check out the articles on this page: How To Do Everything. You just might discover an article there that provides the information you seek.

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

If you want to post a question, 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!


3 Answers

How to prevent or control humidity, mold, etc. in an indoor Retail, Dining, & Entertainment structure with a large body of water

Hello,

I am a student at the Savannah College of Art and Design and I need some information on proper indoor air quality and I have no idea where to start looking. My project will be based in Cappadocia, Turkey where the air is usually dry and the summer months are in the 70s while winter months are low 20s.

In General questions | Asked By sarahcehm | Feb 21 17
4 Answers

Do pellet stoves generate much creosote?

Having lived in a house with wood heat for over 40 years, I've fairly familiar with the ways in which wood stoves can contribute to creosote formation in chimneys and stovepipes. However, I'm not very familiar with pellet stoves.

A friend recently wondered about creosote formation in a chimney connected to a pellet stove. So I'd like to hear from owners of pellet stoves: Does your stove lead to more or less creosote formation than a typical wood stove?

-- Martin Holladay

In General questions | Asked By Martin Holladay | Feb 17 17
8 Answers

New home build in Iowa (Climate Zone 5)

Is it possible for a new home build in Iowa, climate zone 5, to not have under slab insulation? What's the min code requirement for a poured concrete basement with walkout basement?

Is it normal to also have external foundation just sprayed with waterproof membrane and tiles?

Thanks

In Building Code Questions | Asked By user-6759891 | Feb 20 17
13 Answers

Crawlspace insulation

Hi everyone - Looking for some clarification around how to best re-insulate a crawlspace that has falling fiberglass batts.

The crawlspace is under an enclosed 3 season porch (no heat or AC), the crawlspace has insulated steam pipe and h/c water pipes running through it. The vents were previously covered with plywood (but not air sealed). The house also had termites, so I need to be able to continue annual termite inspections.

In Energy efficiency and durability | Asked By oldhouse7 | Feb 1 17
2 Answers

Question on insulating barn

Hi everyone,

Heard about this awesome website by listening to Martin talk the FHB podcast, what a great depth of knowledge that man has!. Now I have a question that I hope to get an intelligent non biased answer for! I currently am in the middle of a project of retrofitting a portion of my barn in order to create a roughly 6' x8' bathroom/shower in a room that's about 16' x 24. That all is well and good but like I said it's....a barn, which means there's is absolutely zero insulation or finished wall surface and the outside wall is also the ship lap exterior siding.

In Energy efficiency and durability | Asked By betterman0908 | Feb 20 17
11 Answers

Cracking slab

I had a basement slab poured in May, and it recently cracked in several locations. I am upset that the cracking did not follow control joints. The slab is about 5" thick, and I was aggravated to find that the control joints are only 1/2" deep. From everything I can find, 25% of slab depth is standard. Do I have a leg to stand on in asking the contractor to recut joints to appropriate depth and repair cracks? Slab is 4k psi with rebar on 2' centers poured over poly, 2" XPS, and ~9" crushed stone, in case it is relevant. Thanks for any input.

In GBA Pro help | Asked By Jim Tyler | Feb 20 17
3 Answers

Garage Door Perimeter Seals

I am finishing up a garage build in New Hampshire. The garage space will be heated and the garage doors are the biggest issue as far as air infiltration goes. I have gone with a two inch thick polyurethane door. Each door section has a sealing strip inbetween to seal air infiltration. The issue that I am having is finding a good high quality perimeter seal. Garaga brand double seal was recommended for its good sealing qualitys and the vinyl rubber seal is supposed to be very flexible down to low temps.

In Energy efficiency and durability | Asked By Jonathan Sinclair | Feb 20 17
2 Answers

Filling a sunken floor and laying Tile.

! have a sunken living room floor and intend to raise it to the level of adjoining rooms. The floor has porcelain tile on it, is not cracked and has been in place 10 years. The present depth is 4 3/4" below adjoining rooms. The present plan is to raise the floor with 2x4's, plywood, hardboard or equivalent and use porcelain tile to finish it off. Is it feasible to leave the existing tile and build up over it?

In GBA Pro help | Asked By Sammie Hodges | Feb 20 17
15 Answers

Building a "pretty good house" in Southwest Michigan

My husband and I are in the blueprint & planning process of our post-frame barn home build; we are building in Southwest Michigan (zone 5A). While we are not a financed build and are not going all out Passivhaus or net-zero energy, we are planning on doing what we can afford using green and passive solar concepts for heating, air exchange units and to use Roxul insulation and Prosoco weather barrier. All of which my husband could describe in grander detail...think Martin Holladay's "pretty good house" concepts :-)

In Energy efficiency and durability | Asked By Brant Quinn | Jan 6 17
6 Answers

Heat-pump water heater availability and reliability

I was set to buy a geospring until I found out that they discontinued them. Does anybody have an opinion on the other brands out there?

In Mechanicals | Asked By user-6765908 | Feb 15 17
Register for a free account and join the conversation


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