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3 Answers

Plywood faced walls in insulated basement?

I"m insulating my basemen with 1" of XPS glued to poured concrete walls and 2x4 wood framed walls within with R-15 Roxul in the stud bays. I've been facing the walls with mold resistant drywall and latex paint. The basement seems relatively dry with no liquid water leaks. However, based on humidity levels I'm assuming some water is making its way in through the concrete walls and floors.

In Green building techniques | Asked By Andrew Alden | Apr 4 14
1 Answer

Best method for insulating attic roof rafters?

I am finishing my attic for living space. The walls are 5ft up then 3ft diagonal then 8ft flat. (see photo). The kneewall and ceiling are getting r30. What is the best way to get a high r-vaule in the 3ft diagonal that contacts the roof with such a small depth? Ventilation is not going through it.

In General questions | Asked By Matt Edwards | Apr 6 14
1 Answer

How to best add insulation to sheltered exterior wall?

Having recently moved into a large, 1980s-built home in central Maine (read: cold) I'm in the process of improving air sealing and insulation. The home has a large attached garage with a non-insulated second floor, and an adjoining second floor room that was framed and insulated but never finished or heated. It's not clear how or where the builder intended to access this space it from the finished second floor but I don't need the space anyway.

In Green building techniques | Asked By Nick Lambert | Apr 6 14
16 Answers

Housewrap/strapping with board and batten siding

Hello. I am thinking about using vertical pine board and batten on the exterior of my new house. This will require horizontal strapping which I initially thought should be placed over the house wrap. I then began to think about where the water will go when (not if) it finds it's way behind the boards. Does the horizontal strapping impede on the water's ability to drain down? Will it soak the strapping and eventually cause issues? Maybe I should place the house wrap over the strapping so that the water has a place to go, not interfering with the strapping? Any thoughts?

In General questions | Asked By Matthew Michaud | Apr 3 14
4 Answers


Locked out of details again (or is it still?)! You people should be embarrassed to be charging people money for this semi-functional site. Instead of locking paid subscribers out why not open all parts of the site to everyone until your issues have been corrected. Or reimburse subscribers until site is fixed. Might give you more impetus to fix it.

In General questions | Asked By Rico Ball | Mar 30 14
1 Answer

Foil insulation advertiser on this site?


They are claiming R21 wall by using foil and R13 fiberglass, with an add on this site.

on top of that I cant view any of the member pages I pay to see

In General questions | Asked By Trevor Chadwick | Apr 5 14
21 Answers

We are installing 1x6 T&G Pine on our ceiling

We are installing 1x6 T&G Pine on our ceiling. Have recently heard we should install drywall layer first. Is this correct?

In General questions | Asked By Carolyn Wood | Mar 31 14
2 Answers

We are planning to retrofit an office building with existing fluorescent light fixtures to new 4-ft. LED bulbs

I work with and electrical contractor who is planning to retrofit an office building with existing fluorescent light fixtures with 4-ft. LED bulbs. What impact will this have on the light bill?

The attempt here is to convert the existing office building into a green building.

In Energy efficiency and durability | Asked By John Powell | Apr 4 14
5 Answers

Roof pitch and overhang questions -- among others...

With a latitude of 44 deg 11 min North, and a longitude of 72 deg 23 min West, can anyone tell me what the roof overhang should be on each side of an attempted passive solar home?--(a kit house I can sketch and order from Landmark Kits.) (There will be some kind of porch...along the west side? Haven't figured out the pitch of that either.)

Also, what is a good pitch for potential future fixed solar panels and not having to shovel boatloads of snow? An 8/12?

How many degrees of true south should the home be positioned...and how do you find true south?

In Green building techniques | Asked By Karen Bunnell | Apr 2 14
8 Answers

Fire survivablitity of tight houses?

I was perusing Treehugger.com and came across one of their April Fools articles. ( http://www.treehugger.com/green-architecture/tall-plastic-future-buildin... ) In it there is a UL video showing how much faster modern furnishings (made out of frozen gasoline as stated in the youtube about section) reach flash over compared to old style furnishings made out of "natural" materials. This got me thinking about how air tight homes might perform in a fire. I quickly realized that I am in no way qualified to answer that question in even a theoretical manner.

In General questions | Asked By Donald Endsley | Apr 3 14
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