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1 Answer

New steel building

I live in Dallas TX, zone 3A.
I am in the planning stage of a steel building. The building will be ~2000 sqr feet & 16' walls. I plan to section off one corner of the building to be an office space but plan to cool the entire building, 2 zones. If orientation matters the large doors will face almost directly north, with a west wall that will get direct late day sun during the heat of the summer.

The standard wall construction used by the builder I am working with is constructed like this. From the outside in.

-Steel sheeting

Asked By Jeff Kirkpatrick | Jul 31 13
14 Answers

Zone 5/6a Vinyl Residing - Double Blueboard, Wrap?

As a follow up to:
http://www.greenbuildingadvisor.com/community/forum/energy-efficiency-an...

Dow SIS is not available in this area, so we will insulate the walls as they are:

2x4
kraft faced fiberglass insulation (very, very thin)
two 1/2" layers of fiberboard as sheathing
one 1/2" layer of blueboard

My thought is to dense pack cellulose in the walls, tape the existing blueboard, add a second 1/2" layer of taped blueboard, possibly wrap, then side.

Asked By J Heckmann | Jul 14 13
2 Answers

Interior sheathing with outsulation?

I am designing and building a tiny house on wheels (in climate zone 6) and the wall assembly I have come up with is a little bit unconventional. I would like to use the PERSIST method, but due to size limitations this is not possible. The wall section I have come up with is a little like PERSIST though:

From interior to exterior:
-7/16” OSB (sheathing & interior finish – applied using caulk)
-2x4 wood studs @ 24” o/c filled with 3-1/2” XPS
-3” XPS over the studs
-Solitex MENTO 1000 WRB (38 perms) -taped continuous air barrier
-vertical ¾” furring strips
-open joint timber cladding

Asked By Travis Marttinen | Jul 20 13
4 Answers

Horizontal roof strapping for ventilation?

Hello,
I am building a 16'x24' house in Alaska, 12/12 gable roof using 2X12 rafters, with a cathedral ceiling. A friend has recommended venting the roof by strapping the rafters horizontally with 2x4's at 16" o.c., thereby allowing cross ventilation from gable to gable. The roof would be sheathed on top of the 2x4's. I haven't been able to find any information on this technique on the web.

Asked By Justin Smith | Jul 15 13
1 Answer

Geothermal closed-loop heat pump vs. lightning

I live in central Oklahoma. My house was hit by lightning and we have hail damage.AC (among other things) is out.

The HVAC guy has experience with the geothermal system, installing, etc, but not with lightning strikes. They have already replaced two circuit boards...still not working.

Catastrophe insurance adjuster has experience with lightning, but not with geothermal heat pump system. His bottom line...can the unit be repaired or will it need to be replaced?

I just NEED coolness. Please help this very hot early 50's wife!!!

Any help is appreciated.

Asked By tami weathers | Jun 18 13
61 Answers

Geothermal nightmare

We truly hope you can help us. We had a geo-thermal closed loop system (into the river) put in and it went online March 2012. WaterFurnace Super DeHeater, 4 Multi-Aqua mini-splits (included for AC) and an air-handler (included for AC). 3200 sq ft home with baseboard and in-floor radiant heating. $34,000 and we have had nothing but problems.

Asked By Colleen Nicholson | May 30 13
1 Answer

I have a home with two stained walls

I have a home with two stained walls. One wall is on a corner to the house. The other is in a angle (upper) near the roof.
I'm sending some pictures so you can see the stain.
I have cleaned it up and it comes back again.

Asked By blanca goertzen | Jun 10 13
2 Answers

Insulating a concrete block house

I am looking at a renovation job that involves adding a second floor to an existing one-story house. The existing outside walls are 8" concrete block with stucco.

The homeowner wants to keep these walls intact since the stucco is in great shape and the windows are new.

In order to comply with the stretch energy code we may need to insulate these walls. Is there a viable way to insulate these walls without disturbing the exterior and/or causing moisture issues? I am in climate zone 5a - New England.

Thanks for your thoughts and suggestions.

Asked By Rob Huss | Jun 4 13
4 Answers

I need roofing advice

I need advice on roofing. I live in death hot/humid zone 9. I am not working this summer and have to repair my roof on my 1600 sq ft. mobile home.

I will replace some rotted decking with 1/2" plywood, and install Grace self-adhesive underlayment.

I am recycling 4" thick Dow blue Styrofoam. They are 2 ft x 2 ft.

I'm not sure the best way to attach them. (?)

To protect the Dow Insulation from the elements, I was thinking of spray foam roof because of the low weight. (?)

If I have an R-35 above my roof deck, is it OK for me to have a NON-vented roof cavity ?

Asked By jacq frost-marvit | Jun 2 13
2 Answers

Refrigerator EMF?

My daughter just moved to a place where the refrigerator back is on the other side of a wall, and only about 4 to 5 feet from the foot of the bed. I think there is also a TV on that wall (behind which is the fridge)

1) Is that distance enough, EMF-wise?

2) Will having a TV (the new kind) mitigate or enhance the EMF from the back of the fridge?

3) Is there a device which can fix the EMF coming from the fridge, and where to place it if there is?

Asked By Donna Armstrong | May 29 13
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