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0 Answers

Would you build a DIY Powerwall

Fascinating video over on Vice about a few DIYers who are building their own Powerwalls, microgrids, and vehicles using "old" batteries. (https://video.vice.com/en_us/video/motherboard-dear-future-build-diy-pow...) I'm not sure I would have the guts to put a homegrown Powerwall in my garage, however. A utility building in the backyard seems safer to me. Thoughts?

In Energy efficiency and durability | Asked By Steve Knapp CZ 3A Georgia | Nov 10 17
4 Answers

How to insulate attic furnace?

I have an furnace in an attic, where the rest of the attic is not finished.

The builder put 2x3's around it with some 1/2" polyiso boards.

What is the best way to insulate this thing?

In General questions | Asked By John Sean | Nov 9 17
6 Answers

Diy removing insulation from attic

This is fiberglass insulation that is like cotton balls. Lots of air getting around and through this stuff!! Was going to air seal attic. Want to suck it out of there first. I have ideas, but thought you guys might have good ideas! Thank you, Greg

In General questions | Asked By Greg Philliips | Nov 8 17
12 Answers

Crawl Insulation--Walls or Floors?

Zone 4, Asheville NC build on a steep slope. Because of the slope, we will have a sub-basement crawl that is as much as 10'-12' on the low side and 2' on the high side. The floor will be dirt with the same slope as the hillside. It will be sealed with 12mil poly. The local energy rater said I could have either the walls insulated, or the floor insulated--it makes no difference. It will have a duct feeding conditioned air to it per code, and a dehumidifier. Basement floors will be quartersawn white oak over advantech.

In Energy efficiency and durability | Asked By Kevin Spellman | Aug 8 17
10 Answers

double ceiling (similar idea to double wall)

can't find any info on this idea.
i'd like to insulate an awkward existing post and beam structure. it has a low-angle metal roof built over the original flat roof with its torch-on membrane still intact. the attic space tapers to nothing at one end, so not enough attic space for insulation above the torch-on layer. inside flat ceiling height is much taller than i need.

wondering if i could build a "double ceiling", similar to a double stud wall, but oriented horizontal instead of vertical?

In Green building techniques | Asked By Clark Lewis | Nov 9 17
1 Answer

What are the general ingredients of spray-in insulation?

Hi,
I'm looking for the ingredients for a general spray-in insulation. I wondered if you could help me with that. I'm doing an insulation project for an extracurricular activity, and I want to use this product, but I'm not sure I'm allowed to, and my teacher doesn't know either. It all depends on the ingredients, or the components. If you will please get back to me soon, I would greatly appreciate it. Thank you.

In General questions | Asked By alli_1205 | Nov 9 17
1 Answer

What are the general ingredients of spray-in insulation?

Hi,
I'm looking for the ingredients for a general spray-in insulation. I wondered if you could help me with that. I'm doing an insulation project for an extracurricular activity, and I want to use this product, but I'm not sure I'm allowed to, and my teacher doesn't know either. It all depends on the ingredients, or the components. If you will please get back to me soon, I would greatly appreciate it. Thank you.

In General questions | Asked By alli_1205 | Nov 9 17
8 Answers

Heat pump dryer for $598 (if you're in southern Ontario, Canada)

This dryer has been discussed several times on GBA and i bought one (for delivery soon) being ventless and quite energy efficient.

Since its discontinued and this is an amazing price i thought i'd post it here for anyone who may live where they can get it

https://www.badboy.ca/whirlpool-7-4-cu-ft-ventless-electric-dryer-ywed99...
https://www.badboy.ca/whirlpool-7-3-cu-ft-ventless-electric-dryer-ywed99...

Discussed on GBA
http://www.greenbuildingadvisor.com/community/forum/green-products-and-m...

In Energy efficiency and durability | Asked By Alan B | Jul 7 17
2 Answers

Can you connect a bubble up raydon system to the air system?

An air system was already installed for radon when we purchased our house. We had a water system installed after (bubble up) and the installer said he could run the water system vent into the air vent. We just had the bubble up serviced by another company and was told what the first guy did was illegal and it will cost $4 to $500 to fix it. Just trying to find out if it is legal to do it.

In Building Code Questions | Asked By maglady | Nov 9 17
33 Answers

Another garage heating question

HI

So I'm building my dream shop/garage, then I going to build my house.. So my wife is making sure I stay on budget.

Building is 64'x 40' x 14'

ICF frost walls that will be 4' below grade and 2' above grade then 12' of 2x6 walls on top for 14' ceiling.
Walls will be taped and sealed OSB best I can and have 3" (reused) Polyiso on exterior and filled with Roxul.
Attic spaced will have blown in cellulose, R???
Floor will have 4" foam under slab. If needed??

South facing side (64') will have 4 large 5' x 5' windows, casement style on half of 2 windows.

In Mechanicals | Asked By Dave B | Oct 4 17
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