The Ceramic Tile Institute and manufacturers of these and similar membranes promoted these products to be installed using method assembly F-122 in the Tile Council of America Handbook For Ceramic Tile Installation. In the 1980's the Superior Court in the State of California accepted the argument that construction is a product. Therefore, and retroactive, the latent and patent defect laws apply. Patent defect means a defect that is observable by the average person. A patent defect, you have up to four years to discover the defect and have the defect corrected or file a lawsuit.
Latent defect means it takes an expert to discover the defect.
You have up to 10 years to discover a latent defect and have the defect corrected, or file suit. Once a latent defect is discovered, you have up to 3 years to file a lawsuit if the defect is not corrected. These rulings changed the warranty requirements by the courts in the State of California. F. Many builders have conscientiously worked to improve the quality of the concrete for residential construction. Increased concrete strength and reduced permeability of the concrete greatly reduce the problems with floor coverings installed over the concrete.