Membrane Underlayment Buying Guide
With all of the different tile underlayments on the market today, it can be confusing to figure out what is best for your application. A traditional underlayment, such as cement backer board or plywood, is often used to give extra support to the tile or other material in flooring installations. Membrane underlayments, however, can provide anti-fracture resistance, waterproofing, impact and sound reduction, or offer a barrier for air or vapor.
There are several different types of underlayment membranes available including sheet membranes, cork, uncoupling mats, and liquid polymer membranes. Many membranes are designed to provide anti-fracture resistance, protecting the flooring or other surface from cracks that can occur in the substrate. Some membranes can also be used over existing cracks to provide crack isolation and suppression.
Underlayment membranes can be used in a wide range of residential and commercial applications including single family homes, apartments, schools, and office buildings.