10 Aug '13, 3pm

Green Building Q&A: Approach for adding insulation to existing concrete walls?

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. The house used to have a flat tar roof, the previous owners added engineered trusses to create an attic space. Only insulation we have found is between the interior ceiling and old tar roof, nothing in the walls or the new attic. 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 ...

Full article: http://www.greenbuildingadvisor.com/community/forum/energ...

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