Community: General questions

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!


1 Answer

Changing Function codes on Fujitsu Mini splits

When changing function codes, can I do more than one at a time? The manual is unclear. Or do I have to change the code and reset breaker for 2 minutes every time?

Having to reset the remote every time really confuses things.

Thanks
Kevin

Asked By kjmass1 | Oct 19 17
1 Answer

Attic Insulation: Mineral Wool Batts or Blown In Cellulose?

I'm in NJ, right on the border of Climate Zone 4 and 5. 1600 sq ft attic currently R-13 batts with lots of voids. I'm planning to airseal and reinsulate over the next month or two and need some help deciding between mineral wool or cellulose. In an ideal world, I'd take out all the existing insulation, clean up, install baffles, air seal, and then blow in insulation.

Asked By Jay | Oct 20 17
0 Answers

Klearwall Passiv AluP+ Window Bug Screen

Looking for a better way to attach bug screens to our Klearwall aluminum clad windows. We have purchased aluminum framed screens. The screen frames are 3/4" wide.
I really don't want to screw into the Klearwall windows using the flimsy plastic hardware Klearwall provided.
Any help would be appreciated.

Asked By adkinsdl | Oct 20 17
6 Answers

Draining the Mega-Footing

I have gotten my engineering drawings on my new house(Zone 4, NC, steep slope). In places, the footing for the uphill concrete wall is over 13' wide! I have attached a representative cross section. How should I handle drainage? I plan to use a spray on membrane with a dimpled drain over that. How far down should that go past the footing/wall junction? Where should the drain-tile go, still at the edge of footing?

Asked By Kevin Spellman | Oct 19 17
3 Answers

Bonus Room Above Garage Insulation - SE Michigan

I know this has been talked about a lot but my bonus room above the garage is freezing in the winter especially the floor. The room has knee walls also. I am looking to get the room spray foamed and have had 2 guys come out with 2 different options and its a bit confusing. Options are below:

Current status - I ripped out the garage ceiling dry wall and pulled all the insulation down. There was differently a gap between insulation and the floor in spots and just not insulated good in my opinion.

Option 1

Asked By swdude12 | Oct 19 17
14 Answers

Can my outdoor minisplit unit benefit from a solar cover in harsh NY winters?

I am brainstorming a greenhouse type cover over my outdoor unit to keep it warmer in the winter to maximize its ability to heat. There are clear corrugated roof tiles at my local home store I am thinking of fashioning into a roof over the unit outside, facing South with possible partial sides. I am aware it needs air flow. My hope is to keep the outdoor unit warmer to avoid it getting too bogged down in the cold. It is a Fujitsu 15RSL3H made for extreme cold.

Asked By PamNYWinters | Oct 14 17
3 Answers

Are furring strips needed for Galvalume siding?

I am about to install metal siding on small guest house and not sure I need to have furring strips. Most of the information I’m finding discusses metal roofing installation, or vinyl siding.

As the structure sits now, all exterior walls are framed with 2”x6” lumber 24” OC, OSB sheathing with taped seams, 1” polyiso foam sheathing, and Tyvek house wrap. Interior wall space will be insulated with mineral wool insulation.

Asked By Andrew Sisson | Oct 19 17
4 Answers

Stopping moisture / condensation build up on bathroom walls

75+ year old new Home. Bathroom approx 75 square feet was recently remodeled. There was originally a dropped soffit area above the shower. It was removed and the ceiling was taken up to the ceiling line of the balance of the room. Glass shower doors were added in place of rod and curtain. Walls and ceiling were repainted. A light fan combo was installed and a second fan was added later. Both fans were tested for flow and there is 80+ cfms between the two. Even after the second fan was added there is a tremendous amount of sweating on the 3 interior walls and ceiling.

Asked By Merritt50 | Oct 19 17
7 Answers

I have a problem with humidity management during winter in my off-grid secondary home

When we get there the air inside can be as low as -20C so when we go back all the humidity we produced is collecting-condesing on the vapor barrier (Isofoil).

The building is 3 years old and was built quite tight by myself. 2 floors, 28x32, heat source wood stove only.

Asked By Pierre Levasseur | Oct 15 17
10 Answers

Insulating a wall

Hi, I live in Toronto.Canada
Situation: I have a garage attached to my house. The wall that separates the garage to the living room, I removed the drywall and all the kraft faced insulation between the studs. The drywall on the living room side I don't want to remove because I installed laminate on the wall with a fireplace. How would I insulate this wall from the garage side? I was thinking of installing 3.5" of rigid xps inbetween the studs then re drywalling. Thank you

Asked By Vernon Mcconnell | Oct 16 17
Register for a free account and join the conversation


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