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4 Answers

New sheathing or not?

I have a 1950's era ranch house that is in Delaware (zone 4). I am starting a renovation where I have to replace the roofing, siding, windows and doors.

The sheathing on the house is 1x6 t&g boards that have large gaps between them. I also do not have any insulation in the walls. I should also add that my inside walls are not conventional drywall or plaster lathe. It is some type of 16" wide strips of 1/2" drywall-like material that is covered with another 1/2" of mortar. It is strange (and hard as concrete) but I have seen it in a few houses in my area.

In Energy efficiency and durability | Asked By Joe LeBright | Nov 10 12
7 Answers

Spray foam sealed attic 1.5 story house question

My wife and I are planning to build a 1.5 story home. By this I mean that we will have a game room, office, and a planned future moive room upstairs in the "attic" space. The office will protrude out of the 1 story roofline as a former, but other than that, everything is contained within the 1 story 8/12 roofline. The rooms are centered and sized such that there are no hip walls, and all have an 8 ft beam.

In Plans Review | Asked By Dustin Gohmert | Nov 10 12
1 Answer

Alternate compliance to the IRC thermal barrier requirement for foam insulation

I am planning on doing unfaced fiberglass batt insulation over spray foam plus continuous polyiso on the exterior of a small new house. The building code (R316.4) requires thermal barriers between the interior useable space and foam insulation and the prescribed way of meeting that is 1/2" gyp board. I was hoping to do wood interior walls and ceilings - plank, OSB or even metal and not do any gyp board.

In Building Code Questions | Asked By Timothy Gooding | Nov 9 12
14 Answers

Is there an alternative to the under-slab rigid insulation system in passive house design?

I think I saw a detail somewhere showing an insulated suspended floor over a crawl space in lieu of the slab on rigid normally used.

In Green building techniques | Asked By Janet Digby | Nov 2 12
3 Answers

GU24 base CFL?

I have just had a home built that is an energy efficient home. All the light fixtures are designed to take gu24 CFL's. After three days the first CFL blew the second within a week the third just blew and we have not been in the home a month. I had a electrician check the voltage and earth to the CFL ha says there is no problem with the wiring.

In Green products and materials | Asked By Rev.Alan Perry | Nov 2 12
7 Answers

Is my slab at risk left unheated through the winter?

I had grand plans for getting my garage closed in, and the rough mechanicals installed before winter. Life (uh... work, actually...) intervened.

I live in MN zone 6, and am building on alluvial sand from the Mississippi River. I built a block stem well on poured footings four feet deep (below frost line), 12 inches of compacted sand was placed on top of undisturbed sandy soil.

In General questions | Asked By Kent Jeffery | Nov 7 12
10 Answers

Condensation on Windows in a 105 Degree Heated Room

Hoping some building science folks might have some good suggestions. I'm helping a contractor friend build out a yoga studio in a commercial space. The yoga that's going to be practiced there is hot yoga, more specifically Bikram which calls for a room temperature of 105 degrees (yes, you read that correctly. I actually practice Bikram and it's pretty great).

In Energy efficiency and durability | Asked By Chris Ermides | Nov 7 12
12 Answers

Best details for thin stone veneer exterior wall

We are renovating part of our exterior and will clad it with thin stone veneer. However, the more I read, the more confused I am in determining the best exterior wall construct. We would like to add 1.5 inch of insulation to the exterior in order to eliminate any thermal bridges (placing all insulation to the exterior is not an option at this point due to design decisions along the way). The needed wall construct seems complicated and expensive and would like some advice on how to simplify it.

exterior to interior construct in toronto or zone 5.

stone veneer

In Energy efficiency and durability | Asked By christine charette | Nov 7 12
4 Answers

Metal roof with exterior fasteners OK for school?

My school board is discussing a new roof for our building. We recently insulated our attic space and want to prevent any possible ice dam water infilitration with our new roof.

In Energy efficiency and durability | Asked By Adrienne Raymond | Nov 7 12
6 Answers

Basement Finishing

I am building a new home in zone 4, Shelbyville, Kentucky. This is my house plan:

In General questions | Asked By Aron Robinson | Nov 6 12
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