Flooring over Precast Concrete

Source:www.stonediamondtool.com Date:2017/12/29 Read:539

Glue Down Vinyl/Linoleum/Rubber Flooring 

Vinyl floors require relatively flat and level floors and should not be applied directly to the untopped precast planks. In areas limited in size, such as bathrooms and kitchens or commercial service areas, a leveling system can be used. Large areas such as classrooms, assembly areas and open offices should have a composite concrete topping applied to the plank. Like other adhered systems the materials should be tested to insure the compatibility of the glue with the concrete substrate.

Hardwood

Hardwood floors are typically set as floating or sleeper systems. For sleeper systems set upon a grillage of wood nailers, there is little preparation required. The installer should check the entire floor area for levelness prior to setting the first nailer. The plank camber will create a curvature in the floor and the nailers will require shims to set the system level. The high strength concrete in the plank will require the use of hardened nails or power actuated fasteners if they are attached to the floor.

Floating Hardwood floors require leveling materials so that the finished system does not reflect the plank irregularities. These irregularities can cause uneven wear in the flooring and damage the locking system where pressure points occur. Hardwood floors glued directly to the plank system are not recommended. This will require a leveling system.

Ceramic Tile

Ceramic Tile requires the most attention when preparing the plank. Tile suppliers do not recommend applying tiles directly to the plank system whether it be topped or untopped. A membrane should be used between the tile and slabs for both thin set and full depth mortar beds.

Carpet 

Carpet systems are the easiest to use with untopped plank floors, but a proper leveling material must be used in order to reduce differences in elevations. Regardless of how the carpet is installed, directly adhered or set with tack strips, a pad of sufficient thickness and density will minimize the irregularities in the untopped plank system. For systems utilizing thinner padding it is best to provide a leveling material either in spot locations or throughout the carpeted area. For directly adhered systems, the installers should test the compatibility of the adhesives with the concrete. With tack strip systems the installer should be aware of the higher strength concretes associated with hollowcore planking. Hardened nails and/or powder actuated fasteners may be needed for the installation of these elements.