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2 Answers

I'm trying to figure out the R-values and specs of these windows

They have been here for the better part of a decade, they are in excellent condition (if dirty) and I have no plans to replace them, but i am curious about any information on their performance.
A photo is attached to this post
Thanks

In Energy efficiency and durability | Asked By Alan B | Dec 28 14
4 Answers

Remove construction adhesive

Concrete block house exterior redo. The old system went......do you believe this......block, 1x4 spacers, 1" foil faced ridgid foam, t 1-11. Well, the t 1-11 rotted big time. Got it striped down to the

In General questions | Asked By Robert Brown | Dec 27 14
1 Answer

Wondering about using foil-faced polyisocyanurate foam board between studs in a basement sauna project

Wondering about using foil-faced polyisocyanurate foam board between studs in a basement sauna project.
Should I worry about off-gassing?
Is this safe?

In Green products and materials | Asked By John Moffet | Dec 28 14
2 Answers

Round table top made from 4x4 only

My wife wants a round dining table. She wants the table top itself made of 4x4's only. I have complete blue prints on how to assemble it properly. What I need is advice on the type of saw. I don't know of any jig saw or the like that has a long enough cutting blade to cut completely through a 4x4. Only saw I know of that can cut wood that thick is a table saw, which would leave me with hours of sanding. Please advise.

In General questions | Asked By Jacob Seibold | Dec 27 14
1 Answer

Crawl space rehabilitation using vapor barrier, rigid foam board and cellular concrete

Whoever coined the phrase "Do it Right the First Time," had it correct.

I have a technical question concerning how to properly rehabilitate a crawlspace using the correct materials and procedures.

In GBA Pro help | Asked By Thomas Trible | Dec 27 14
0 Answers

Acquire Some Reliable Ideas In Business Property Here

Ԝhen yօu make а good investment as considerable as industrial real estate property, үߋu mսst mɑke suгe thаt yߋu are informed cοncerning thе p

In NAHB Class Discussion | Asked By Cheryl Larkin | Dec 27 14
2 Answers

Additional insulation below laminated/floating floor over rigid-foam-insulated concrete slab?

I have a 4" concrete slab insulated with 4" of rigid foam (on the underside, of course). I was planning to install laminated floating floor on top of everything. As I have to install 2x2"s over the concrete in order to hold the laminated floor, a friend suggested to fill the space between the 2x2"s with insulation or, at least, dirt.

The questions are:

In PassivHaus | Asked By Jose Castro | Dec 27 14
6 Answers

Can this really be? ACH50 of 0.62?

With homage to Martin's Christmas poem, I thought I'd share the results of my blower door test and ask... Is this really to be believed?

The interior volume of my home, including unfinished basement, is 53,569 ft^3 as calculated in my SketchUp model of the place. The blower door test results showed 551 CFM at 50 pascals, giving an ACH50 of 0.62.

In Energy efficiency and durability | Asked By Kent Jeffery | Dec 24 14
50 Answers

Solar thermal systems for heating water

Jin this is for you and Richard

Let's run the costs and the systems through the paces

so far I hear $16,000 for a Caleffi system and maybe that for labor? $32,000
saves $500 a year

CO2 production unknown to manufacture
Very little CO2 to run the ECM circulators

There are much less costly systems

NYSERDA here in NY is unveiling a new program this January
Will post more about it when they tell us more

Jin, Richard, others... what say you all

In Mechanicals | Asked By aj builder, Upstate NY Zone 6a | Dec 15 14
2 Answers

Solar thermal buffs bite (Martin) back

Solar Thermal is Dead (NOT!)
http://www.builditsolar.com/Projects/WaterHeating/Dead/Dead.htm

I should start out by saying that I like a lot of the articles that Martin Holladay puts up on theGreenBuildingAdvisor.com site. They often bring out new points of view and promote some good thought and discussion on topics that don’t get addressed a lot elsewhere.

In General questions | Asked By flitch plate | Dec 23 14
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