Floor Joists Over Concrete Slab

Built from traditional 2x12s.

Floor joists over concrete slab.

Been getting a lot of wonderful information around here lately. Floors with joist spacing s of 4 to 10 tend to have increased total concrete slab depths and greater mass to resist floor vibration. It also adds a little cushion to the hard surface of the concrete. The concrete was specified to reach 3 500 psi at 28 days with a water cementitious ratio of 0 45 and a max.

Floor joists are traditional wood joists. Building a framed wood floor over an existing concrete slab can provide the space needed for electric wiring heat venting plumbing drain lines and added insulation when remodeling a basement or garage space. Cure the moisture problem before you install the floor. It s a fairly simple project and the cost is reasonable 3 to 6 per sq.

Floor joists over concrete slab. Renovating a bathroom and we have stripped back to the concrete floor underneath. The concrete seems to have been treated with a. With some judicious control joints we only had a few cracks.

Slump of 4 with shrinking reducing ad mix. Joists over concrete wall. I just moved into an outdated 1959 ground flr maisonette with concrete floors. Cover the patio with a thin layer of sand lay pavers over it and the results look like a standard paver patio.

The cement floor is approximately 2 feet above the ground and 3 thick. We chose to build our house using floor trusses. A wooden subfloor will not cure moisture problems. I am going to install 2x6 floor joists on a cement floor put fiberglass insulation rolled in between the joists and the floor will be 3 4 exterior plywood.

Moisture that comes up through the slab will ultimately find its way into your finished floor. Ft but expect a weekend or two of hard labor. A concrete slab provides a firm stable base for pavers. And the first floor trusses are installed and so very pretty.

We are putting new wooden joists down and a. 5 vibration of steel joist concrete floor slabs discusses in detail methods for calculating vibration characteristics of cj series steel joists. The procedure for installing a floor structure over a slab with 2 by 6 joists can be. Hopefully you guys can help me with a project i have in the works or at least on the drawing board if you will.

In case you are curious about the different type of options when building a house here s a lay wo man s low down. We had a similar concrete floor with radiant tubing and the wire mesh attached to spacers just floated over the top of the tubing.