Confidence votes 25.2K. The league is an obsolete unit which has in the past been used in many countries with somewhat different values. However in England it was generally understood as 3 miles. It was useful when people walked long distances, you could cover 1 league in 1 hour. + 76 others found this useful.
Laminate flooring requires an underlayment. You get what you pay for when it comes to flooring underlayment. Cheap is not always better. There are several types and price ranges available, and each manufacturer of flooring has a recommendation for the type of underlayment that should be used.he purpose of underlayment is to reduce sound, provide a moisture barrier, aid with subfloor imperfections and slightly cushion the feel of your floor as you walk on it. All of these things must be considered when you purchase your underlayment.
You can then begin putting down underlay padding. Step #4: Install Laminate Underlayment. If your floor is over concrete the first job is to lay a polyethylene film down, then the first row of foam underlayment.(As discussed earlier this could be accomplished by using a 2-in-1 product that combines vapour barrier and foam in one product.).tep #2: The Subfloor. Most laminate flooring manufacturers have a requirement that the floor must be flat within a 3/16 gap in 10'. Thus if it is a wood subfloor you may have to consider sanding off the high points if this can be done without affecting the structural integrity of the subfloor.