Marmox Multiboard is a lightweight insulation board that is commonly used as a waterproofing and dry-lining solution, as well as for providing thermal insulation. It also acts as a decoupling layer that prevents tiles and grout from cracking due to horizontal movement on the floor. Since it is entirely impermeable to water, it is especially useful in moisture-prone areas like kitchens and bathrooms. The Marmox Multiboard can be used as insulation throughout the house and then covered with tiles or plaster.