Whether for new construction or a renovation, a great variety of subfloor types need a tile underlayment prior to setting tile or stone. Some reasons for the need to install tile underlayments include: they may reduce stresses from subfloors and protect tile, they may be used to build up height as needed to finish the tile surface flush with adjacent flooring surface, and they may be necessary for waterproofing or insulation purposes. They should also provide and support successful and lasting adhesion performance for thinset mortar and tile.

wedi^® Building Panels offer a durable underlayment surface once tiled and pass the Robinson Floor Test (ASTM C627) with a “heavy duty use“ rating.  In combination with its ideal flat surface, it is a logical choice when installing small tile or very large tile, extremely thin tile on floors. Both require perfect thinset mortar coverage and adhesion, made easy when working on a most flat and even surfaces, and the full support of a strong underlayment like the wedi Building Panel.

However, it is important to evaluate the suitability of a subfloor structure, or the layer below a tile underlayment, to ensure a proper tile installation and the choice of a good underlayment fitting the application.

wedi^® Building Panels are:

• Used in wet rooms, or where floor warming systems are used
• Ready for tiling upon installation
• 100% waterproof due to their extruded polystyrene (closed-cell) foam core
• Easy and clean to cut to size using a utility knife, circular saw, or handsaw
• Available in sizes and thicknesses that can accommodate different projects and applications