Das Sägeschnittverfahren als Horizontalabdichtung gegen aufsteigende Feuchtigkeit - Sanierungsbeispiel Schulhaus Heinrich Bosshard / Horizontal Saw Cut Method for Preventing Rising Damp in Masonry - School Building Heinrich Bosshard, a Restoration Example

One of the most common reasons to restore an old (historical) building is the damage of the masonry and the external rendering due to moisture. For the analysis of the damage mechanism and the restoration of the building, experience and specific knowledge are needed. The first step to realize a successful restoration is the determination of the actual condition of a building by appropriate analysis and the deduction of the damage of the damage mechanisms. If rising damp is a causing mechanism, different restoration concepts can be considered. The choice of the final concept is mainly influenced by the cost, aspects of preservation of monuments and the future usage of the building. For the restoration of the School Building Heinrich Bosshard at Zurich-Schwammendingen, the rising damp was stopped by making a horizontal saw cut into the rubble masonry.