More Walls...


Old 01-08-02, 07:42 AM
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Join Date: Oct 2001
Location: Minneapolis
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More Walls...

Just what you guys want...another wall question.

Here goes:

I've got 8" block walls inside my basement in front of the original poured-concrete type walls (home built 1911). There is approx. 2-3 inches between the 2 walls with the blocks being plumb. What type of insulation would the readers reccomend? Could go with 2X4 walls, filled with R-11 fiberglass or go with the polysterene sheet. Since I've insulated the floor joist/rim space, the basement has been much warmer (fewer/no drafts). In fact, the basement is downright comfy. I live in central Minnesota.

1. Do I even need to be concerned with insulating the walls? If not, suppose I could go with furring strips on walls.

2. Fiber/sheet reccomendations?

3. Who out there has tapped into a main sewer line in their basement? What type of connection do you use for the cast-iron splice that is BELOW the finished floor?
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Old 01-08-02, 08:38 AM
Join Date: Aug 2000
Location: USA
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Insulating basement walls

You might want to post your questions about insulation on the Insulation Forum where many experts tend to drop in. There is some very good info at as well as for insulation concerns.

For finishing basements, a good place to start is at where you will find many basement finishing concerns addressed.

Your question re: tying into the main sewer line in the basement will bring you responses on the Plumbing Forum.

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