Line Cost. New flooring: install 2,500 sq.ft. of mid-grade 5/8 x 4-1/2 wide vinyl plank flooring and 500 linear feet of matching baseboard. $2.49. per sq.ft.
The drying shrinkage of concrete is analogous to the mechanism of drying of timber specimen. The loss of free water contained in hardened concrete, does not result in any appreciable dimension change. It is the loss of water held in gel pores that causes the change in the volume.
Testing Concrete Subfloors ~ As concrete moves through its initial drying period, regular checking of moisture content can start after 30 days. In most cases it will take 60 days or more before the slab is dry enough for wood flooring installation to proceed. Excess moisture in the concrete will cause problems such as condensation or failure of the adhesive under the flooring.