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4 Answers

Slab against rim joist detail please

New construction: back patio will be a slab poured against the rim joist so it is nearly level with the door threshold. Rim joist will be 11 7/8" atop a retaining wall back-filled with gravel, so there will be good drainage. The patio will be covered with a roof, and slope away from the door of course.

What's the best way to permanently protect the rim against water, moisture, and termites?


Asked By David McNeely | Oct 8 15
8 Answers

What are your thoughts about studs left un-drywalled?

I saw photos on Houzz of exposed interior wall studs - Prentice Architects and HS2 Architecture.
What are your thoughts? The light is attractive. What are your thoughts?

Asked By Mary Schwaba | Sep 29 15
1 Answer

Retrofit insulation


I've got a 150yr old big house back house type farmhouse in Maine. Even though there was some blown in cellulous in the ballon frame construction, it's cold in the winter (exterior walls feel very cold to the touch).

I'm debating between the following for adding to the interior side of exterior walls right up against the lath and plaster:

1. Putting up sheets of foam with drywall backing (how many inches is the best efficiency/cost choice)? Any caveats?

2. Putting up a two by four frame then filling with roxul insulation

Asked By DJ | Oct 5 15
0 Answers

Need help selecting MassSave cellulose densepack contractor

I know bunch of you are here from MA, so I figured I should ask here.
Contractor, that did insulation work on my house last year is no longer in MassSave program. One they recommended is booked literally into late spring and won't take on new bookings.

So now I need to find a contractor to pack my empty walls (clapboard siding). Any recommendation for solid contractor who can do the job in Waltham area? List is like 100 contractors long, so it is hard to pick.


Asked By Apollo S | Oct 7 15
14 Answers

Ceiling insulation

Have several questions.

1. I found a lot of rigid foam (2.5 inch) in the ceiling which is laid over the cellulose insulation. I thought that the moisture will be kept under the foam. Do I need to take off all the rigid foam? or just leave it?

Asked By Ben Yoon | Sep 28 15
7 Answers

Vapor barrier on DIY walk-in cooler?

Hello, I need someone to answer a simple question for. I have searched the web and gotten conflicting answers.

I'm building a 15X20 walk-cooler that will be kept between 35-40 degrees F. This is for storing poultry eggs on a egg production farm in Milton Freewater, Oregon. (NE Oregon)

Three walls will be inside the larger barn structure, which will be kept between 60-80 degrees F, the fourth cooler wall is formed by the exterior barn wall, facing west.

The design completed so far is as follows;

Asked By Mahlon | Oct 4 15
3 Answers

Sight-built SIPs detail -- leave the middle foil face?

As a follow up question to a previous one:

I am going with the "sight-built sip" approach.

Zip sheathing taped then a double layer of 1" eps foam and 1/2" osb on the outside with an additional layer of building wrap.

The sheets came foil faced.

Q:Does it matter if I leave the foil on the 1" layer attached to the sheathing? (sandwiched between the 2 layers of foam) Will it interfere with moisture flow away from the house?

It peals off fairly easily so that is an option.


Asked By Brian McDonald | Oct 5 15
33 Answers

Why is there condensation on the return ducts and mold in the attic as well 60% humidity throughout the home?

This home has since been remodeled, including all new metal duct work and insulation. The issue that we need to resolve is the high humidity in the house at about 60-65% even though the unit is running efficiently. There is quite a bit of condensation on the return ducts in the attic as well. We have had two reputable Heating and Cooling Contractors come to assess the situation to no avail. The owner attempted to contact the original Mechanical contractor, but has not been able to speak to anyone yet.

Asked By Jimmy Miller | Sep 1 15
1 Answer

Mfg. home, block skirt insulation

I am setting a 25x65 mfg home on a full slab foundation in zone 5+, high desert Cascades. I will be putting in a 3 course cement block "skirt" with mechanical ventilation. I am considering installing 2" rigid foam panels 24"x48" attached to the inside of the block skirt. I am looking for heat retention in the winter primarily (-20 on occasion). Will this be worth the effort and expense??

Asked By Robert Holland | Sep 27 15
5 Answers

Can I place foam insulation over linoleum tile in a basement floor?

I'm attempting to remodel a basement that is conditioned space in climate zone 4A (MD).

Asked By John Sullivan | Sep 25 15
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