Return to the Renewable Energy Forum | Post a Follow-Up

Retrofit insulation to concrete/brick walls?

Posted by seekingsun (My Page) on
Sat, Aug 10, 13 at 10:49

We just purchased a new (built in 1951) home and are working on some renovations before we move in. One major issue is the lack insulation in the entire house. The exterior walls are built of concrete block with full brick on the outside. Then looks like the interior plaster was put right up against the concrete block. For the walls, the approach that has been suggested so far is to frame out the walls with 2x4s, add insulation and then drywall. Moving our switches and electric out as needed. Need some advice please!

1. Is this our "best" approach to increasing the efficiency of the walls? (We are adding attic insulation also and I know that will give us some huge efficiency gains.)
2. Is there any way to accomplish this other than with 2x4s to not eat up so much interior square footage?
3. What type of insulation would perform best?
4. I found a few articles that had concerns about the effect of adding interior insulation to the exterior masonry product (freeze/thaw, etc.). Would that be a concern here? (We are in central Midwest)

Thank you so much! We are overwhelmed with everything that needs to happen in this house! It is planned to be our forever house so we want to make sure we get the most possible efficiency long term.

(Cross posted to Green Building Forum...)

Follow-Up Postings:

RE: Retrofit insulation to concrete/brick walls?

I recall seeing a product that was 4" of closed cell foam laminated with drywall or blueboard on the inside. This would give a much higher R value than an interior stud wall in the same space and probably lower installation cost.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Renewable Energy Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here