close

Privacy guaranteed - Your email is not shared with anyone.

Insulating cinder block exterior walls

Discussion in 'Michigan Homesteading and Home Improvement' started by 2ESRGR8, May 7, 2012.

  1. 2ESRGR8

    2ESRGR8

    Messages:
    7,612
    Likes Received:
    37
    Location:
    in the thickets
    Looking for advice input on what options I have for insulating the exterior walls on a block house I have in NE lower Michigan.
    Exterior is vinyl sided with I believe some type of insulating board behind the vinyl, think celotex or some similar type product.
    Interior is shown below. Firring strip on the block that was covered with a reflective paper then paneling. We are looking to remove all the paneling and have these walls drywalled. Right now I am leaning toward doubling up the fir strip after covering it with a vapor barrier and then using rigid foam.
    Thoughts?

    [​IMG]
     
  2. Wojo

    Wojo

    Messages:
    4
    Likes Received:
    0
    Location:
    Ocqueoc, MI
    I'm also in the NE lower, and I was recently faced with the same dilemma. I'm now in the middle of finishing a cinder block walled basement, though only 30% of the "basement" is below grade. I decided to rip out all existing and go with a 2" Foamular insulation on the walls, and then build out my 2x4 stud walls in front of the insulation. Cinder block walls by themselves give you an insulation factor of about 1.1. Adding up the R factor of the cinder block, the 2" insulation, the air gap between the insulation and the drywall, and the drywall...I will be at roughly R12 1/2. Before doing anything I caulked up any cracks in the mortar and then painted the walls with Dry Lok. Here's a picture of a completed section.

    [​IMG]

    I guess I should also mention that I had little to no framing experience prior to taking on this job. I did my research online, bought some books, read up to familiarize myself...then, DAMN THE TORPEDOES! ;)

    Let me know if you have any questions. I'm hip deep into this project, so it's all very fresh in my mind. :)
     

  3. hehibrits

    hehibrits

    Messages:
    2,088
    Likes Received:
    41
    Location:
    Oakland County
    A friend in Iowa had a cinder block cabin and did pretty much the same thing Wojo did except he then covered the rigid insulation and went nuts with spray insulation. I have stayed there several frigid January nights and have kept the whole place warm with just a small space heater and a few dogs. My friend claims you can heat it with a candle.

    Outdoor Hub mobile, the outdoor information engine
     
  4. dead short

    dead short Mods

    Messages:
    4,418
    Likes Received:
    748
    Location:
    Michigan's Agricultural Wasteland
    After 2 coats of dry lock extreme we used 1/4 inch fan-fold (styro) as a vapor barrier. Followed that by 2x4 framing and fiberglass batt.

    Posted from my iPhone.
     

    Attached Files:

  5. jpollman

    jpollman Premium Member

    Messages:
    18,437
    Likes Received:
    246
    Location:
    Rochester Hills, MI USA
    Sounds like you got it backwards. The vapor barrier goes between the insulation and the finished wall. (warm air, drywall, VB, insulation)
     
  6. dead short

    dead short Mods

    Messages:
    4,418
    Likes Received:
    748
    Location:
    Michigan's Agricultural Wasteland
    Nah. I think for basement walls I'm good.


    Posted from my iPhone.
     
  7. HarleyP

    HarleyP

    Messages:
    1,325
    Likes Received:
    0
    Location:
    MI
    2es. - wojo's got it.


    Outdoor Hub mobile, the outdoor information engine
     
  8. hunt448

    hunt448

    Messages:
    173
    Likes Received:
    0
    Location:
    roscommon
    Spray foam is the way to go.

    Outdoor Hub mobile, the outdoor information engine
     

    Attached Files:

  9. da new guy

    da new guy

    Messages:
    151
    Likes Received:
    30
    Location:
    Near Brest Bay, Monroe
    Hunt
    How much did the spray foam run you? Did you do that yourself or have it done?


    OutdoorHub Mobile, the information engine of the outdoors.
     
  10. hunt448

    hunt448

    Messages:
    173
    Likes Received:
    0
    Location:
    roscommon
    I had it done. My cousin does it so I got a deal. It is pricey but so worth it.

    Outdoor Hub mobile, the outdoor information engine
     
  11. WoW.

    WoW.

    Messages:
    1,786
    Likes Received:
    45
    Location:
    central Michigan
    Are you sure that it is cinder block? Typically, cinder block was only used above grade, cement block below grade.
     
  12. Wojo

    Wojo

    Messages:
    4
    Likes Received:
    0
    Location:
    Ocqueoc, MI
    I'm no builder, and there's always a chance I'm going to use an incorrect term here or there. We've just always called them cinder blocks, regardless of what they're made of. It was always a generic term...like Kleenex. ;)
     
  13. tuckersdad

    tuckersdad

    Messages:
    233
    Likes Received:
    35
    I'd go with this product...

    insofast.com

    Quick and painless...easy to run wiring, video explains it all...good luck