This type of renovation should be carried out under the supervision of a structural engineer. When roof trusses are located in corrosive atmospheres, the metal gusset plates or nails may eventually deteriorate. Sometimes, this can cause the roof to collapse or to be significantly reduced in strength. Corrosion of reinforcing bars in silos and in concrete floors and slats covering stored manure is an issue that is currently being researched. As the concrete deflects or is stretched under load, tiny cracks can develop.
Farmers commonly drive tractors and skid-steer loaders on reinforced concrete floors and slats.
The underside of these slatted and solid floor areas should be inspected periodically. Care should be taken not to enter a space where confined toxic gases could be present without appropriate breathing apparatus and a safety line. If corrosion is taking place, the under side of the floor or slat will be discoloured with rust stains. In those cases, engineering advice should be obtained. By doing this, several changes occur.