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3 Answers

Slab vs. crawl space

Hello. I seem to have written my question incorrectly previously. I am preparing to build a 1,300 sq. ft. home in northwest Montana.

Around here crawlspaces and basements are the norm. I am researching using block frost walls (no basement) and a slab. Most of my builder friends are counseling me against this.

I want to have some wood floors and some tile. Wood floor area would be poured at a lower elevation. I would lay down treated sleepers and plywood to attach the 3/4 flooring to.

Asked By Mike Koness | Jul 10 18
8 Answers

In trying to insulate a cold, north-facing parlor of my 1890 house, rigid foam board was recommended

In trying to insulate a cold, north-facing parlor of my 1890 house, rigid foam board was recommended in this forum. Further driving revealed that only one of 7 walls (there's a bay window) had enough space for that, and for 6 of the 7 walls, there's only...

Also, there's aluminum siding over the walls with the bay window. Otherwise, the exterior is brick.

Asked By Susan Hanway | Jun 27 18
4 Answers

How do I fix condensation between ceiling and closed cell spray foam insulation?

I have cathedral ceilings on my second floor with close-cell spray foam insulation on the bottom of my roof. There is only about a 1-2 inch gap between my ceiling and my "hot roof." I had the roof done 4 years ago and it is completely covered with ice and water shield. Over the past few months (covering the spring and summer), I have noticed water stains and mineral effervescence pushing through the paint on the very highest point of my ceiling. I have asked the contractor to remove the top 3 layers of shingles to see if there was anything wrong with the exterior.

Asked By MartyBiz | Jul 9 18
6 Answers

Would redoing the roof earlier than planned change insulation advice and be cost effective overall?

Zone 5/6 line in small NH town with no code officials. Retrofit for 1820 two-story Cape 1-story kitchen/dining sandwiched between main house and two-story attached barn that is ¾ converted to living space, ¼ garage (garage poorly insulated with sliding barn door that leaks to air and critters). Granite/rubble foundation, poured concrete floor with good drains but bulk water ingress in the springtime, so planning gutters and likely interior drain on uphill side and sump also to mitigate radon.

Asked By Theresa Swanick | Jul 5 18
2 Answers

Like to replace existing antique 3 tube and fin radiators in my old house but I'm not sure how many BTU's per foot they produce.

Attachment shows 2 tube, 3 tube, and 4 tube (I'm not even sure what this style is called). I have the 3 tube arrangement throughout the house and I would like to be confident that when I upgrade, I'm getting more heat for each room in this 1650, modestly insulated, house.

Asked By JamesRMillar | Jul 5 18
16 Answers

MOST efficient wall construction for cold climate?

Im a contractor currently designing my own dream house in Quebec. The idea is that the home will eventually be Net Zero, which means I'd like the house to be as energy efficient as possible.
so is there a consensus? my insulation guy is telling me that the best is a 2x4 construction with horizontal 2x3's on edge, filled with 5" of urethane. (VERY little thermal bridge, super tight, etc)... any thoughts please?

Asked By user-7107493 | Jul 3 18
3 Answers

Insulating a 1920 home built with concrete blocks

Hello. We are remodeling a 1920's house. Gutting it completely. It currently has no insulation - unless you count 27 layers of wall paper! We are in NE Tennessee - Zone 4A. We plan on framing the exterior walls on the inside (2x4) and filling them with batt insulation. The concrete blocks are "rock face" popular in the area at the time and are about 10 inches wide and shaped much like present-day cinderblock, but the walls are thicker. The rock face block has been painted on the exterior. The mortar, for the most part is in decent shape and we will repoint the bad parts.

Asked By DarnPotter | Jul 5 18
15 Answers

Homeowner seeks joist insulation options for garage ceiling

Hi all. I know similar questions have been asked but I haven't seen anything that quite hits my three concerns. Any experienced advice would be greatly appreciated.

Asked By Kevek101 | Jul 3 18
7 Answers

Renovating solid brick walls in Florida

Hello everyone,

First off, keep in mind I'm in Florida.

I am fixing my roof eaves and decided to work on the inside of the exterior walls. I have solid brick walls. No air gap, just one layer thick. The old walls simply had heartwood nailed straight on the brick and then Birch paneling...that's it. Simple enough, right? However, over the corse of 50 years and
neglect, termites ate a lot of that wood. They came uo next to the brick.

Asked By Shakeyray2000 | Jul 2 18
5 Answers


I have an attic that is not insulated. The attic is over the garage and the garage is insulated .

I want to insulate the attic, my question is:

Do I have to insulate the garage ceiling? I wouldn't think so?

Asked By user-7066100 | Jul 3 18
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