Pathologies Building pathologies - Building problems - Disorders The problem of the building arises by a bad design, a choice of constituents badly adapted to the conditions of environment, errors in the implementation, or a lack of maintenance. On the other hand, the market demand for quick and inexpensive work, push some builders and craftsmen to offer mediocre solutions where the price is the only important element when choosing a technical solution. Fondations et infrastructures • Lack of recognition of ground risk. • Settlements. • Differential settlement of foundations. • Exceptional movements in sensitive soils. • Settlement of paving in individual dwellings. • Collapse of masonry retaining walls. • Serious defects on the foundations. • Disorders of deep foundations. • Disorders in the roads and various networks. • Clogging of on-site sanitation systems. Structures and structural work • Structural cracks. • Building basement humidity. • Corrosion of reinforced concrete reinforcement. • Facade leaks. • Disorders of pavements for industrial use. • Disorders affecting balconies and waterproofing. • Problems related to wood treatments. • Disorders on swimming pools. • Disorders of timber frame constructions. • Capillary rise. • Termites. Roofs and frames • Infiltrations in tile roofs • Condensation on the underside of metal roofing • Disorders in flat roofs • Thermal expansions and shrinkages • Surveys and waterproofing • Sealing of parapets • Deformations of wooden structures • Collapse of light covers under the weight of water • Lost roof spaces: risks of transformation • Roofing in bituminous shingles • Under-roof disorders

Building envelop et exterior coatings • Disorders of single-layer coatings • Infiltration by window-shell connection of buildings • Infiltrations by French window sill • Disorders after repairs to plaster facades • Degradation of facade impermeability coatings • Disorders of the basement • Disorders of thermal insulation systems • Ffacades from the outside • Micro-organisms on facades • Aging and deformation of translucent plates • Multiple risk structures: verandas • Degradation of stains and paints on exterior wooden joinery • Removal of facade coverings laid with adhesive mortar • Falling thin stones attached Equipment • Condensation in housings • Disorders in sanitary water networks • Disorders of hot water underfloor heating • Leaks from pipes incorporated in the slabs • Disorders affecting the flues • Corrosion and leaks of steel sanitary water circuits • Sludge of heating installations • Acoustic insulation defects • Closed hearth fireplaces and inserts • Drainage network flow fault • Disorders of mechanical ventilation installations (VMC) • Electrical installations outside Swiss standards Interior fittings • Separation of bonded flexible floor coverings • Breakage of tiles in supermarkets • Cracking and detachment of tiles • Parasitic air infiltrations • Disorders of industrial floors • Recoveries of humidity in the shower corners • Parquet and risks related to humidity • Disorders on ceilings in terracotta elements • Disorders on floor paints • Disorders of paint systems on metals • Paint peeling off new concrete ceilings