See above. You would measure this distance at different spots around the floor and ensure all of the measurements fall within 3/16″ of each other.

Underlayment should be taped down to prevent bunching underneath laminate planks over time and to create a sealed moisture barrier between the laminate flooring and the subfloor. You can use this versatile tape to repair damaged objects, seal containers, install laminate flooring, etc. Other than the classic red version, the tape also had a limited-edition version bearing similar properties. Duralay Timbermate Excel Laminate and Wood Underlay 10sqm: The best laminate underlay for less noise Vinyl underlayment, however, requires different tapes. Frequently used vinyl underlayment tapes include vinyl floor tape and PMR vinyl flooring tape.Laminate flooring has the potential to be rather noisy as it flexes against the subfloor. A good underlayment provides a noise-reducing buffer between the two surfaces, preventing annoying creaking sounds. If you live in a condo or apartment, sound absorption is a must to avoid conflict with your neighbors below. In fact, many apartments and condo communities require underlayment that has a minimum sound rating. A self-adhesive seaming tape for use with many underlays. This tape helps to create a vapour barrier within your underlay.

Draw a simple diagram of the rooms that you wish to fit underlay in - these drawings don’t need to be perfect as long as the measurements are accurate.There are a couple of things to bear in mind, though. One is that it doesn’t have built-in damp protection, so you’ll need to budget for a vapour barrier. The other is that the fibreboard can be a bit crumbly, so handle it with care until it’s horizontal on the floor. Ready to install underlayment for laminate flooring on your concrete floors and want to make sure you do it right? I’ve got you!