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15 Answers

Frost wall foundation details for stone and siding construction

I am planning a slab on grade build (24"X8" footings, 4' deep, with 4'6" frost walls). I am having issues with the location of all the sub components on the frost wall width, specifically on the stone detail wall (front wall only).

Asked By Mai Tai | Jun 18 17
2 Answers

Spraying vapor barrier paint on open-cell foam

Hi,

I want to use open-cell foam on a new project and am trying to meet the IRC guidelines. The insulation installer suggests spraying vapor barrier paint directly on the foam. I have read previous research on GBA that found this ineffective. However, would it also be detrimental to the performance of the foam, or would it make no difference?

Thanks,

Josh

Asked By user-6868809 | Jun 16 17
2 Answers

Why is the "Green Homes" section blank?

When I click on section tab at the top, the page that I'm directed to is blank!

Asked By Cm Mm | Jun 15 17
4 Answers

Adding exterior insulation to 100 yr old house - added risk for rot where framing contacts foundation?

Going to add exterior insulation (spray foam likely) over 1 layer of siding. The house has a rubble foundation with no capillary break between the foundation and the framing. The ends of the floor joists are embedded in the foundation.

The house had 2 layers of siding. I've removed the outer layer to expose the inner and found the inner siding and sheathing rotted at the bottom of the wall where it covered the band joist and sill. See pictures. Luckily, the joist itself is in good shape.

Asked By TIM LANGE | Jun 14 17
8 Answers

Zone 1 (Oahu) uninsulated house, but don't want to use A/C - DIY

Hello, I'm in a Zone 1 climate, leeward (west) Oahu, Hawaii. My house is a mid 1980's construction, double-wall but with no insulation, anywhere. AC is via window units, installed in either windows or wall, but I really don't like using them as even if it's just one AC, room closed up while habitated, say the bedroom, it will raise the bill by $~70 for the month and is not pleasant anyways (noise, cycling etc). I've looked at several sites and this and green building talk seem the most professional in their engagement, and have some of the same posters it appears.

Asked By 73Greencorvette | Jun 12 17
8 Answers

Has anyone ever heard of homeowner insurance canceling your policy due to bees under your siding?

We bought our house 2 years ago in Louisiana and last year, a swarm of honeybees from a neighboring beekeeper choose our home and made colonies. We've had 2 professionals come look and they say it's likely we have at least 3 colonies based on the size of activity and 3 different entry points. So the suggestion was made to contact our insurance company to see if we could get help removing bees and honey and repairing siding that would need to be removed,which is practically the entire back and side of our home.

Asked By Vinysgirl | Jun 9 17
2 Answers

Turning a traditional bathroom into a wet room.

Anyone have suggestions on how to waterproof the entire floor to drain properly....my space is limited and my drain pitch is maxed......fyi this is in the basement.

Thank you in advance

Asked By Ogmrfixit | Jun 3 17
13 Answers

Floor above unconditioned space

Hello
Firstly thanks for the feedback on my previous roof assembly post. This question relates to the floor of the conditioned area (ceiling of a garage/carport). Thankfully no ducts, just wires and plumbing in a few locations.
By way of background, its climate 4C (near Vancouver, Canada) and a small building used as a holiday home, not fully occupied in Winter. The occupied conditioned space will sit above both an unconditioned garage and cantilevered over a carport.
Designers build up from conditioned side down:
- ¾ OSB T&G
- Poly sheet
- 9.5” I Joists on 16” centers

Asked By Quinn Sievewright | Mar 29 17
6 Answers

How do I get Comcast through my envelope prior to blower door test?

In anticipation of a blower door test, water, sewer, electricity, and gas were run to house with one phone call each. Can anyone suggest a way to convince Comcast to provide a stub-out to new construction with studs not yet covered?

Three weeks and half a dozen phone calls (each one requiring a half hour just to get to someone who could look at the job ticket) I usually get: “T.V. has to be ready to hook up before we can install service.” Why, I ask, can you not bring the cable to a utility box and test the signal there? Yesterday I learned this:

Asked By David McNeely | May 27 17
3 Answers

Do we need housewrap?

Building a new home in Hanover NH. Advantech sheathing will be taped. Then 2 1/2 inches of XPS will then be applied and taped. Then firing strips, then Hardy siding.

Initial plan was to place house wrap on outside of of XPS. Our builder says that perhaps house wrap is not necessary, given the tape on sheathing then again on XPS, but he is willing to add it if we prefer.

Is there any advantage to house wrap with this construction method?

Asked By Frank Torti | May 21 17
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