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2 Answers

Best source of heat? Looking at ductless heat pumps

I live in Long Beach, Ca., on the ocean. We never need AC, but need heat in the winter.

I removed our old furnace and duct work. Our top unit of duplex is approx. 1,700 sq. feet.

Are ductless heat pumps a good option? We have a wood/gas fireplace that heats main living/dining area. We would probably need two heat pumps. There is no attic. Older 1960s duplex.

THANK YOU for any feedback!

In Energy efficiency and durability | Asked By marianne messina | Nov 1 12
8 Answers

Interior retrofit of insulation in a cathedral ceiling

by Ken Ackerman

In GBA Pro help | Asked By Ken Ackerman | Nov 1 12
1 Answer

What ton AC unit do you use for a residential house measuring 3,500 sq. ft.?

Have an inspector who told me i have to have post manual J calculations for the house, and i need some help!,

In General questions | Asked By Tirso Torales | Nov 2 12
1 Answer

How to insulate bonus room and use of air baffle

I have read many articles on how to insulate a bonus room over a garage. I have a heat run in the attic space behind the knee wall. Therefore, I plan to include the bonus room and attic space in the conditioned space. I want to run 1” inch continuous air baffle from the soffit to the ridge vent and air seal it. I am working with

In Energy efficiency and durability | Asked By Regis Mizikar | Nov 2 12
13 Answers

Is my siding pine or cedar?

My wood siding needs repairs, and a couple of contractors who looked at it were not sure whether it was pine or cedar. It is not painted, just stained. How do I determine whether the siding is pine or cedar so I can make sure that the new boards match the old?

In General questions | Asked By Moya Mim | Oct 31 12
3 Answers

Heat loss - attached garage slab

Hi, if i want to use radiant floor heating in the slab foundation but not in the attached garage, will there be heat loss into the garage? If so, any suggestions on a better way?

In General questions | Asked By Linda Ingalls | Nov 1 12
4 Answers

Aluminum or vinyl gutters for Northeast?

Adding gutters for house that never had them in the Northeast. Cold, wet, snowy area. Lots of trees with leaves above the house. 1.5 story house (low gutters).

What is a better choice, aluminum or vinyl?

In either case, should I specify any particular features (thickness, size etc.)

In General questions | Asked By Moya Mim | Nov 1 12
2 Answers

Do building code officials actually support IECC Performance Paths?

Pretty much all of the IECC code revisions for both residential and commercial include a whole building performance option for code compliance. As far as I can tell this path is not supported in RESCheck or COMCheck which only check prescriptive requirements or envelope tradeoffs. In your experiences do building code officials actually support these paths? What software programs do they allow for proof of compliance? Where (which state/region)?

In Building Code Questions | Asked By Nick Sisler | Nov 1 12
4 Answers

Conditoning a crawl space: process and materials

I'm trying to find a contractor to do a job that I cannot do due to medical issues. But, what I can do is have specs in the proposal consistent with what I expect. I have read Martin Holladay's comprehensive article on how to condition a crawl space.

In Green building techniques | Asked By william phillips | Oct 31 12
18 Answers

Is a WRB necessary with a rainscreen?

I'm about to enter the WRB stage of my house. I've avoided the use of a WRB on my roof, and would like to go without on my walls.

Covering an entire house with a WRB seems excessive in a rainscreen system. Capillary water seems to be the only enemy of a rainscreen wall. Impermeable furring strips, or an impermeable strip at the furring strip layer would appear adequate at preventing capillary moisture from migrating into the wall from wet siding. Asphalt felt, or plastic housewraps do not seem ideal for this task.

In Green building techniques | Asked By Richard Baumgarten | Oct 29 12
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