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9 Answers

How do I upgrade a low-slope cathedral roof?

The roof is on a Panabode that I just purchased Zone 4. Haven't taken possession yet so don't have detail pictures. From my investigations the roof is made up of 4X10 longitudinal cedar beams 4 feet apart. The ceiling is 2.5 inch tonque and groove cedar running from ridge to plate. On top of this is 1.5 inches of rigid insulation then half inch plywood sheathing and then torch on roofing. It is about a 1/4 pitch. Can I use the torch on as a vapour barrier and then frame it up with 2X8 and use fibre glass bats, vented?

In Energy efficiency and durability | Asked By Ted Sharples | Apr 18 16
1 Answer

I am working on an indoor pool building

I am working on an indoor pool building. We installed an Armstrong W-H 1100 ceiling system. They did not want us to use the felt lining in this system.

Now the client wants the ceiling panels lined. I need to find a black material to line these panels with that I can use over an indoor pool.

In Green products and materials | Asked By Sue-Ellen Stoddard | Apr 20 16
7 Answers

Open-cell spray foam in historic retrofit

Hi, we are going to be renovating/adding to an 1888 Victorian to achieve "pretty good" near net-zero standards in the Chicago area. We are currently debating the type of spray foam to use in the existing structure (open cell vs closed cell). We will be using dense-packed cellulose with staggered stud walls in the addition.

In Green building techniques | Asked By Alok Khuntia | Apr 18 16
2 Answers

How much heat is saved removing a window-mounted air conditioner in winter?

How much heat is saved in winter by removing window air conditioner? Is there a rule of thumb?

In General questions | Asked By Sally DeSalvatore | Apr 19 16
6 Answers

Gravel under garage floor?

I've seen that gravel is generally recommended under basement floors, but haven't yet been able to locate an article discussing garage floors. In zone 5 SW MI. Planning to use 2" reclaimed XPS under garage floor which is on high ground with sandy soil. Excavator and builder say that floor should be sand, XPS, poly then concrete. If gravel should be above sand, how much? Thanks!

In Energy efficiency and durability | Asked By Dave Owens | Apr 19 16
26 Answers

Heating and hot water

We're empty nesters building a new home. I'd like to bounce some ideas off of you and looking for suggestions.
Current home, 2000ft2 20yr tract home. gas forced air heat. SE exposure & we let the sun in. Current usage: 3494kwh/yr electric, 9317 kwh/yr gas. I think we're pretty frugal with our energy consumption, we keep the stat set low during the day, and essentially off at night.
New home will be in central CO, plenty of sun. 6939 htg deg days (about the same as current location). Average low in Jan is 12.4F. AC is not needed.

In Mechanicals | Asked By brad haack | Apr 6 16
3 Answers

Is it a good idea to use foil-faced rock wool under the basement slab?

I will be building a new house in climate zone 5. I'm doing my best to achieve the R10-20-40-60 insulation level goal. I've been able to find some discount rock wool board that I would like to use below the concrete slab in the basement. Specifically 1" thick Thermafiber Firespan 90. This has a 8.0pcf density which would be good for sub slab, however it also has a foil faced vapor retarder. I would like to stack 2 layers of the product to achieve an R8.4 value (close enough to the R10 goal).

The basement slab construction is as follows (from top to bottom):
4" concrete with wire mesh

In Energy efficiency and durability | Asked By Adam Peterson | Apr 19 16
98 Answers

Ideas for this floorplan

Hi all! I'm new to the site here and was hoping to gather some feedback, or to change my plan altogether.

I'd like to build a ranch on a basement with plenty of southern glazing. I found the attached plan as a starting point but I'm afraid that if I move forward, I'll just spend a bunch of money creating blueprints only to find that I needed to change something after the fact.

In Plans Review | Asked By Drew Baden | Mar 9 16
7 Answers

Is there an under-sink recirc pump model that has an ECM motor and can be operated on demand?

I'm looking for a recirc pump model that has an ECM motor and can be installed in a house without a dedicated return line and can be operated on demand. The best option I've found so far is the Bell & Gossett ecocirc wireless (http://bellgossett.com/pumps-circulators/circulator-pumps/potable-water-...), but I don't really need/want the wireless part or the batteries. Hard wired is fine/preferable.

In Green products and materials | Asked By Chris Stratton | Apr 7 16
1 Answer

What form or shape of a pavilion design will be suitable for Chennai?

What form or shape of a pavilion design will be suitable for Chennai? Can have it with examples?

Which structure of a pavilion will absorb low heat in Chennai?

In General questions | Asked By Mani Priya | Apr 19 16
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