Trimming the Edge with Aluminum and Vinyl Mouldings
Applied Before mouldings are put in place before the floor covering is installed. The material is then fit to it, and a lip is tapped down to protect the raw edges of the flooring product after the installation of the material (basically carpet) is complete.
There are many installers who are not using trims to protect the floor covering edges because of a lack of compensation for the labor and additional materials. But the pennies saved are not worth the shoddy appearance of the installation, and the reputation that may result from it, when trim is not used.