Concrete Floor On Wood Joists

Our range of drawings can help pros plan projects more effectively by utilizing designs for a fire rated ceiling assembly.

Concrete floor on wood joists.

With some judicious control joints we only had a few cracks. The dead load on a floor is determined by the materials used in the floor s construction. Treated plywood to the concrete with concrete screws spaced every 16 in. The concrete was specified to reach 3 500 psi at 28 days with a water cementitious ratio of 0 45 and a max.

In general however most flooring choices will work on either type of sub floor and shouldn t be a major determinant in which system you choose. If there s wall board covered ceiling suspended from the underside of that floor the dead load increases to about 10 pounds per square foot. Ceiling joists are usually 2 by 6s or sometimes 2 by 4s if it is an older home. Slump of 4 with shrinking reducing ad mix.

If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists. Here you can find drawings for our ul fire rated floor assemblies and ul fire rated ceiling assemblies. Sheet materials mdf hardboard chipboard osb plywood door. 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.

We had a similar concrete floor with radiant tubing and the wire mesh attached to spacers just floated over the top of the tubing. The procedure for installing a floor structure over a slab with 2 by 6 joists can be. A floor s framework is made up mostly of wooden joists that run parallel to one another at regular intervals. A typical wood frame floor covered with carpet or vinyl flooring has a dead load of about 8 pounds per square foot.

Concrete cutting tools concrete mixers block splitters concrete masonry saws cutting chasing floats floor. The short answer is yes but not significantly. Mouldings planed timber planed timber mouldings skirting cladding wood flooring window boards. Some newer homes have manufactured i beam shaped joists.

Floor joists are typically 2 by 8s 2 by 10s or 2 by 12s. Some wood flooring options don t perform as well on concrete slabs and likewise for some hard flooring options on wood framed floors.