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4 Answers

HRV ducting, minisplits, and exhaust fans

I am planning on heating my house with 2 minisplits ,one on each floor. I will have a propane fireplace as backup. Since I have no duct work the only air circulation will be the HRV..

I have read on this site an article on mini split air circulation which pulls the air from the bedrooms (farthest from the heat source )and fresh air supplies are in the center of the house ,closer to the heat source....my question has to do with exhausting the two bathrooms....would I use 200 cfm fans on a timer and vent them through the envelope as well as the range hood?...

thanks, Bob

In General questions | Asked By bob holodinsky | Jun 27 13
6 Answers

Wood-walled basement?

From what I've read it appears one can build a basement's walls out of wood. The wood is heavily pressure treated and specifically graded for use in foundations. Typical walls use 2x8 s on 16" or 12" centers and either 1/2" or 3/4" treated plywood. If the stud cavities are filled with air permeable insulation an interior air barrier must be used. The bottom of the walls is restrained by the basement floor which may also be made of PT wood or ,of course concrete and the top of the walls are braced by the first floor framing and sub floor.

In Energy efficiency and durability | Asked By Jerry Liebler | Oct 3 12
2 Answers

My roof strategy

This site is wonderful. I've gotten loads of useful advice by asking questions, reading articles, and following discussion threads.

I am about to have a conversation with my builder and framer about the roof assembly for my new house. It will be a thick roof (see Roof detail copy.jpg) with a combination of exterior and interior insulation. Since the builder and framer have not done this type of assembly before, I want to gather a little more information before making this key decision.

In Plans Review | Asked By Steven Knapp | Jun 26 13
14 Answers

Corrugated metal indoors (as ceiling/wall panel)

Dear experts, I need some advice.

Instead of drywall we want the 'barn' look. We want to install these wavy corrugated metal panels on the ceiling and perhaps walls.

If you've been to Joe's Crabshack, that's what we want it to look like, roughly.

are there any concerns using galvanized steel like that indoors?
how about air quality?
fire hazards?

thank you so much

In Green building techniques | Asked By Don J. | Jun 19 13
3 Answers

Which heating/cooling system would be most cost effective?

I have recently bought a split 2000 sqft (3000 sqft including basement) duplex building that had been converted into a signgle-family home some years ago. I am in the process of converting back into a split duplex.
The current heating source is an oil-fired forced-air furnace which serves the whole building (one side better than the other). The building insulation is also way below code (R-5 walls, R-8 attic) Duuring this reno/remodel i am updating/improving all the insulation (R-14 walls, R-50 attic), improving airtightness and building envelope efficiency.

In Green building techniques | Asked By Josh MacDougal | Jun 26 13
7 Answers

How to reach over kitchen counter to open "outie" windows?

After years of toil and GBA-reading, my wife and I getting close to a decision about building. We're in Zone 4c. We want thick walls (probably double-stud) with "outie" windows for deep sills. But now we're designing the kitchen. My wife, looking at the window over the sink, is asking how either of us can possibly reach across a two-foot-plus countertop and a 10-12" sill to unlock and open a window. I don't have an answer for her.

In General questions | Asked By Gordon Taylor | Jun 25 13
1 Answer

Insulation for walls

Hi, I have a very old barn-shaped house which is not well insulated. I did blow insulation into the attic, but I know I am losing heat from the slanted walls upstairs. Do you know of any insulated wall coverings which I could affix to these walls? What do you think of cork? Thank You.

In Energy efficiency and durability | Asked By Nicole Rosa | Jun 26 13
1 Answer

HRV and Range Hood

I am confused on how a range hood exhaust works in a tight envelope with a balanced HRV system .Where can the air be pulled from that is being exhausted?...regards,Bob

In General questions | Asked By bob holodinsky | Jun 26 13
1 Answer

What kind of windows are better for Arizona hot summers?

I'm looking to replace the windows in my house but, I'm not real sure what are the best options.
what are the best windows brand that will have a low U-factor and Solar Heat Gain.
Thank you for your help.

In Energy efficiency and durability | Asked By Miriam Jimenez | Jun 25 13
6 Answers

Air-Sealing at Exposed Beams

I'm currently under construction on a project and wanted to run by my air sealing strategy at some exposed beams by some other minds.

The project is a double-stud wall house in climate zone 6B. About 1/2 the house has a typical attic, the other half has a cathedral ceiling.

In Energy efficiency and durability | Asked By James Kennedy | Jun 24 13
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