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2 Answers

To vent or not to vent?

First, I apologize for a question asked many times on here. After just asking about access to an unvented attic, I started to question the whole unvented idea. I live in zone 3, plan to use Zip R (R-6.6) with cellulose inside 2x6 walls.

I originally planned on unvented with 5 inch nailbase with around 3 inches of OC spray foam in the bottom of roof.

I've read every article I can find on the subject on here and other sites. If my ducts and air handler will not be in the attic, would it be better to go unvented? I know with unvented you gain a lot of volume of air to condition.

Asked By Eric | Nov 28 15
4 Answers

Atypical cathedral insulation

Hello,

I'm in climate zone 5A and trying to determine how to best insulate cathedral ceiling in farm/shop pole-type building with unusual design (picture attached). Building is multi-purpose with large portion un-insulated, but I would like to split loft section in half and use half for insulated workshop. Periodically heating around 60-65 deg at the most (but above freeze level all winter). Code does not apply for this building, but I don't want long term moisture issues.

Asked By Matt | Nov 25 15
2 Answers

Can anyone recommend a high quality direct vent natural gas heater?

We are currently using a vent free heater and find that it is causing health problems. Any recommendations or advice would be appreciated. Thank you.

Asked By Grace | Nov 25 15
2 Answers

How to separate house from garage

Our house will have 5" nail base on the roof with a 3" of oc foam on the underside and the walls will be ZipR over 2 x 6 wall. The garage will attached to the house. My question is do you build a wall in the attic between the garage and living area, then insulate it just like an outside wall? Also I don't want any pull down stairs in the house so what should I do for access to the attic from the garage? I thought about have an exterior door installed in the the previous mentioned wall.

Asked By Eric Chandler | Nov 26 15
4 Answers

Builidng a house from the "Affordable Passive Solar Planbook for North Carolina"

I have the opportunity to possibly build a new house on a piece of farmland. I'm trying to keep the costs down, and I really want to incorporate ways to reduce build cost and future cost of heating the home. I'm in Calgary, Alberta.

Asked By Solange Pomerleau | Nov 24 15
1 Answer

At what temperature should blown foam insulation be installed on a steel roof with 2x6 trusses?

I have a 24x60 pole barn and want to keep moisture from dripping on inside items. It`s getting cold and I want to know at what temperature should blown foam insulation be installed? I`am more concerned with moisture than R value but plan on having 4 inches blown on the roof.

Asked By Gordon | Nov 24 15
2 Answers

Brick veneer air gap vents into rim joist in crawlspace/basement

Minnesota
50's rambler with a few additions over the years.
I believe it is cement board siding with brick veneer around the lower base.
Blower door test came in around 4,500 cfm50

Asked By B D | Nov 24 15
14 Answers

Connecting masonry cavity foam insulation to windows and running services in CMU hollow cores

Hi.

I live just out of Melbourne in Australia. For reference, our climate zone is Cfb (temperate, without a dry season and with warm summers). Annual HDD (Farenheit, with base 65 degrees) is 2,838 degrees. Annual CDD is 450 degrees. It very rarely goes below freezing temperature.

Asked By George | Nov 23 15
9 Answers

Why will our heat pump not warm the whole building?

Our office has complaints about the building we work in -- it will not get warm. We have an old boiler, but when we renovated in the 90's the company installed heat pumps and connected the two systems together.

Once it hits 32 degrees, the boiler was supposed to come on. Instead, half the building is cold and the other is hot.

Can anyone please explain what is going on here, and can it be fixed?

Asked By Desirae | Nov 23 15
1 Answer

Can you install a metal panel roof on plastic furring strips?

I am getting ready to install a metal roof (36" wide panels) onto my SIP roof. I've read that a 'cold roof system' is the way to go with SIPS - to allow any moisture that comes through the sips to evacuate. Is the extra layer of sheathing over the furring necessary, wouldn't you get more ventilation if the roof was installed just on furring strips? And could these stand alone furring strips be the plastic Cor-a-vent Sturdi-strip product to allow for better drainage and ventilation? Does this product make for a weaker connection of the metal panel to the sheathing?

Asked By Rene Cappuccino | Nov 24 15
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