dB Block is a multipurpose, innovative product of DUROSTICK in paste form. It acts as a waterproofing, anti-crack and anti-vibration on the internal or external surfaces where it is applied, while at the same time it provides them with excellent thermal insulation properties. Applying dB Block on roofs as a substrate for DS-220, ensures the complete waterproofing of surfaces (does not age), even if the top waterproofing coat gets damaged or fails at some spots. It uniformly covers the surfaces with a protective flexible coating without seams and joints. It adjusts to the expansions and contractions of surfaces long term and it remains unaffected by the small vibrations of the substrates. Its combination with the top quality elastomeric waterproofer DS-220 (pic. 3), creates a watertight system that is resistant to adverse weather conditions, intense temperature variations, ultraviolet solar radiation (UV), with excellent resistance to moisture and standing water. The final surface retains its whiteness (pic. 4) is unaffected by chalking and it can be cleaned simply and easily only with water. The result from the application of the system is the elongation of the service life of the top waterproofing coat, the thermal insulation of the surfaces and the significant energy savings. USE Surface preparation: The application surfaces for the roof waterproofing system of dB Block & DS-220 must be sound and thoroughly cleaned from dust and any loose materials. When working with non-sound or brittle cementitious surfaces, prior to the Waterproofing system for roofs
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