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2 Answers

ERV for a basement apartment

We are renovating a 900 sq. foot basement apartment in Beacon, NY (Hudson Valley - area code 12508). It's partly below grade, and pretty tight with new double pane windows.

We're thinking of putting in an ERV for ventilation since:
1) We think that having the availability of ventilation in the basement apartment is a good thing.
2) We've noticed a slight mustiness in there.

In GBA Pro help | Asked By Yaakov Weintraub | May 15 14
1 Answer

Advantech exterior sheathing permeability and wall drying

Hi. I am worried that my plan to use Advantech 1/2" (WRB over it) as my exterior sheathing will not allow my wall to dry to the outside. I have heard that the perm rating of this product is 2-3. Is there way to install the sheathing with very small gaps to improve the chance of moisture to escape? Should I even be worried about it? Thanks.

In General questions | Asked By Matthew Michaud | May 14 14
5 Answers

Should I insulate one of my exterior foundation walls?

I am getting some water penetration through a block wall in my basement and through the floor near the bottom of the same wall. The ground on that side of my house is currently sloping towards the house and inviting water inside. I was thinking of excavating that side of the foundation and applying a waterproof membrane to the exterior and then regrading the ground to make it slope away from the house.

In Energy efficiency and durability | Asked By Kevin Schramm | May 12 14
5 Answers

Wood fence post foundation in Wisconsin

I'm interested in wood fence durability in cold climates. I am planning on installing a 5ft picket fence using 10ft cedar 4x4 posts this weekend. The posts will be buried 5ft deep and spaced 5ft apart. Will be using a skid steer with a 10" auger to make short order of holes. I want to stay away from setting posts with concrete or foam because I may be moving the fence in a couple of years (and want to minimize materials I am using). I live in Madison, WI where the frost line should be 3-4 ft.

My questions are:

In Energy efficiency and durability | Asked By Kristopher Steege-Reimann | May 6 14
3 Answers

House Heats up at night on warm days

I have a 918 SQFT home on a crawlspace in Kansas City area. Attic air sealed and insulated to R-40+ Walls dense packed with Cellulose to R-15, .26 air changes. furnace/air handler is in the attic with insulated ductwork.

Last night I went to bed and it was a reasonably nice 77 degrees. I have not turned on the Air conditioner. Outdoor temperature got to 69 last night, but when I woke up the house was at 81 degrees. I am struggling to figure out why a 4 degree temperature increase overnight even when it is mild outside.

Should I be looking at attic ventilation or to the crawlspace?

In Energy efficiency and durability | Asked By Jeff Classen | May 7 14
2 Answers

Moisture management

I am a builder in a suburb south of Dallas, TX area. I have a homeowner that wants to install tile from floor to ceiling in the master shower (including the ceiling) that is on an exterior wall. How do we prevent blocking moisture inside the 2x6 wall?

In Green building techniques | Asked By Tracy Mitchell | May 13 14
1 Answer

Insulation in renovated home

Working at the World Trade Center site for several months I was exposed to many toxins. Now that I am renovating my new home I would like it to be as healthy as possible. Thankfully I have yet to be ill and would like to stay that way. What are my best options for safely insulating my home? I thank all in advance for any help.

In Green products and materials | Asked By KURT MAURER | May 13 14
17 Answers

My client would like to purchase a ventless heater to put in his blocked up fireplace

I understand they can run on natural gas, LP gas, or denatured ethanol.
Are these units putting out any substantial heat or are they more decorative?

In General questions | Asked By roger steinbrink | Dec 10 11
1 Answer

How do published commercial and residential code requirements for combinations of continuous insulation and stud cavity insulation relate to in-wall condensation concerns?

The 2012 IECC includes minimum requirements for continuous insulation in combination with stud cavity insulation for wood stud walls. The requirements for these combinations differ between commercial and residential buildings. The required R values for continuous insulation are higher for residential buildings than for commercial. Considering cold climate applications, how do these requirements relate to in-wall condensation concerns?

In Energy efficiency and durability | Asked By Albert Russell | May 13 14
2 Answers

Daily attic air exchanges?

.. with a balanced attic ventilation system in place,

how many attic air exchanges daily should be expected?

In GBA Pro help | Asked By Hans Mayer | May 5 14
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