Construction and maintenance challenges in building seals and roofing

Technical reports highlight common structural issues in building maintenance and construction. In France, the connection between masonry and exterior windows, known as the franchassis, is a frequent source of ten-year insurance claims. Analysis from France Épargne indicates that nearly two-thirds of such claims involve sealing defects. Common errors include improperly sized peripheral gaps that compromise joint compression and thermal bridges that violate RE 2020 regulations.

In Geneva, roofing specialists emphasize that locating the source of a leak requires precise diagnostic methods, as water often travels along rafters or under membranes far from the actual entry point. Effective diagnosis involves analyzing roof pitch, framing, and weather conditions to distinguish between issues like displaced tiles, chimney connections, or gutter defects, preventing unnecessary repairs.