When sheet vinyl is installed so it runs up the wall a few inches instead of stopping right at the wall, it's necessary to install a cove shaped material UNDER the sheet so it curves up the wall gently instead of making a sharp right angle. What is this cove shaped stuff called?
I'd like to find some online, but searching for things such as "trim", "base", "cove filler" just gives products designed to go ON TOP of flooring.