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4 Answers

DIY walk-in cooler in basement

I would like to build a walk-in cooler in the basement of my home. I plan to insulate to >=R25 on walls and ceiling and I thought I had a good plan for insulation until I considered vapor diffusion. The space will be in the basement which is generally 65-75 degrees year-round and has a RH of 40-50% (active dehumidification in the summer and fresh air ventilation in the winter to maintain humidity).

In Energy efficiency and durability | Asked By Ken French | Oct 19 15
1 Answer

Who makes, supplies, installs replacement fiberglass windows in Toronto high-rise buildings?

My extensive research of the window manufacturing and installation industry has lead me mostly to the low-rise vendors. Some claim they can install their Vinyl windows in any high-rise building (against Fire Code).

Wood and Vinyl (combustible) window frames are not allowed in high-rise construction.

Aluminum frames are strong but have the highest thermal-conductive rating.

Fiberglass have the best energy performance and least expansion / contraction related to glass.

In Green products and materials | Asked By David Froud | Oct 20 15
1 Answer

Adding attic insulation

zone 6 northern NH,single story house, low clearance in attic, only 4 feet at tallest point, so access is poor at best, ceiling is 6x6 beams with 1x10 boards on top of beams,boards are not tongue and groove and have gaps up to 1/2 inch between them, lots of unsealed electric boxes,wire runs, etc.

In Energy efficiency and durability | Asked By Darren Williams | Oct 20 15
6 Answers

Article about PACE green financing program

Reuters has a story this morning under the headline "Green financing has hobbled home sales in California." I found it at http://news.yahoo.com/innovative-green-financing-hobbled-home-sales-cali.... I would be interested to hear other people's reactions to it.

In General questions | Asked By Reid Baldwin | Oct 19 15
8 Answers

Closed-cell foam for existing cathedral ceiling cavities?

I've a 150 year old house with a partial cathedral ceiling covered by plaster lathe, and dry wall on top. There is no insulation at all in the cathedral ceiling bays. I can access the top of each bay from the attic, and the bottom of the bay via the knee wall - is there a closed cell foam solution I can use which would not require me to tear down the approximate 8 linear feet (each bay) of ceiling, without blowing out the plaster? Thank you - Jim

In Energy efficiency and durability | Asked By Jim Berry | Oct 18 15
10 Answers

Varathane stain — any way to "seal" the VOCs?

I saw a very similar question at:http://www.greenbuildingadvisor.com/community/forum/general-questions/40941/varathane-over-stainrequired, but not quite the same.

MSDS http://www.homedepot.com/catalog/pdfImages/fd/fd14acf7-d5c8-4341-ad5b-54...

I am trying to get LEED for HOMES (Platinum level) certified. My contractor (not real familiar with LEED, I have been supplying material specs) used Varathane Stain, 266267. The VOCs are extremely strong!

In Green products and materials | Asked By Bruce Johnson | Sep 19 15
9 Answers

HRV exhaust problem

We completed this home in 2009, using Hardiboard cement clapboards. The vent at the bottom of this wall (on the northeast) is the exhaust from the HRV. The section of wall above the vent, to the right of the window, has peeling paint and delaminating siding, which we believe to be a result of moisture from exhausting air. An infrared scan shows the plume of hot, moist air which has the same footprint as the siding problems. No other wall areas in the house have any issues.

In Green building techniques | Asked By Bob Irving | Oct 19 15
5 Answers

Best ceiling air barrier for house addition?

I live in the mountains of Virginia, climate zone 4 bordering on climate zone 5. We typically have summer high temperatures of 90-100 deg F and winter low temperatures of 10-20 deg F.

In Energy efficiency and durability | Asked By Michael Tuso | Oct 19 15
3 Answers

What size HRV do I need? (correction)

Hi everyone, I am looking to put an HRV into my house in the Toronto, Canada area.

New (5 yrs) house with pretty tight construction. 3200 sq ft on main and upper levels, 1400 sq ft basement, average ceiling height 9 ft.

My calculation (from the internet) says I need 217 CFM. Can someone clarify/ validate?


In General questions | Asked By Jack Nimble | Oct 19 15
1 Answer

Where do you get cellulose for insulation?

I need to insulate the attic of my cape (behind the knee walls). It only has 2 by 4 rafters I believe. I was told closed cell insulation was the only way to go, but my doctor is concerned about my health. I do have chemical sensitivities. Can I use cellulose in my circumstance and will it be effective? I can only insulate the bottom 4-5 feet from the knee walls down. How do I find someone to do this as I have not heard of it until now? Thank you for any help.

In Energy efficiency and durability | Asked By Carol Angell | Oct 19 15
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