Tuesday, November 20, 2012

Floor Poured

Been a while since an update, have made some decent progress. 

Prior to pouring the floor, 6 mil plastic is laid and taped to create a vapor barrier below the slab.  This goes down directly on the 6" of gravel that was placed.  Any moisture that comes up through the gravel is stopped by the plastic.

 Here is the plastic doing its job.  The sun was out and moisture was coming up through the rock.  You can see all of the moisture that would normally be in the slab from the ground.

The plastic is lapped up the wall and taped to the ICF foam.  2" of XPS foam (25psi) is installed over the foam, and taped as well. 
Even though we are not installing infloor radiant heat, I am still putting down 2" (r10) of foam.  This creates a thermal break between the ground and the slab.  The foam touches the ICF walls, making the basement like a foam cup.  It added roughly $1500 to the project, but it makes the floor more comfortable.  Since there are bedrooms and a large family room down there (as well as a music/aux room) it was worth it. 

All penetrations are taped as well. 

 The slab as been poured.  It only took a couple hours.  I had the pumper come back to do the basement.  There was not very good access to the basement for a truck, so the $400 for the pump made it easy for all of us. 

Power troweling the slab. 

Here is the finished slab later that afternoon.  The north section was getting a lot of sun and was drying much faster than the south part.  The south part was still dark gray almost a week later. 
You can see the LVL ledgers and the anchor bolts cast into the wall.  These hold the hangers we will put up for the floor structure.   


  1. Hey Jesse great blog. We are in almost the exact same boat as you: http://icftfsystemshome.blogspot.com/

    Do you have the upper walls poured yet? TF had some braces they rent. We used those for the upper walls and they really made it easier. It only cost us about 400 bucks for a week. It all looks good. Get another update on here.

    1. Hey Peter
      We are working on the upper walls right now. The bracing we are using I built for the basement, and I will reuse it for the upper walls. It costs a lot less than $400 to make :)
      We will probably pour the upper walls in 2 weeks. Still need to do final bracing, finish infill, finish lintels, finish infill above windows, and some other things need done first.