Tuesday, February 07, 2006
The slab pre-pour
Got a note from Mike Kernagis:
Here's the slab shortly before they poured the concrete. You can see the plastic vapor barrier on top of the foam, and how all the joints and plumbing protrusions are taped. This vapor barrier serves two purposes, 1. it prevents moisture transfer from the ground to the slab, and 2. it prevents the concrete from sticking to the foam, allowing for the removal and reuse of the foam if the house is ever demolished. At the date of this picture, January 26, the rebar is in place in the deep parts of the form, but the re-wire is not in place for the thin part of the slab.
For the past three weeks or so the formwork has alternated between a swimming pool and an ice rink. I would get it pumped out only to see it fill with rain or snow again. FINALLY, last week was dry and warm enough that I could lay down and tape plastic, bend and set in the re-bar and mesh, and thoroughly brace and level the form.
Here's the slab shortly before they poured the concrete. You can see the plastic vapor barrier on top of the foam, and how all the joints and plumbing protrusions are taped. This vapor barrier serves two purposes, 1. it prevents moisture transfer from the ground to the slab, and 2. it prevents the concrete from sticking to the foam, allowing for the removal and reuse of the foam if the house is ever demolished. At the date of this picture, January 26, the rebar is in place in the deep parts of the form, but the re-wire is not in place for the thin part of the slab.
Friday morning our concrete finishers went to work. Kat and I measured out and set our sill plate bolts as the concrete started to set up. The concrete guys finished and sealed the slab and will be cutting a couple of control joints with in the next day or two.