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Underlay

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The wide range of underlay products available on PIATRAONLINE are design to complement the class of natural stone care and also for other categories. Designed for insulating the construction materials from the exterior and water, these are products used in exterior decorations, roofs, building foundations, terraces and rainwater systems.



The underlay products are very important for natural stone preservation, which could be sometimes altered by water, due to improper installation and maintenance. The professional sealing solutions (available in the DIY shops) are protecting the upper area of tiles, while the underlay acts as a barrier against water from the walls or the soil from the stone’s texture, thus activating some chemical processes which otherwise would have remain unnoticed.

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