Fiber Cement Siding Defects: How to troubleshoot fiber .
In addition, Siding with warping or bowing in excess of 1/2″, field and edge cracking through the board, or delamination is also Qualifying Damage. Siding means CertainTeed WeatherBoards™ Fiber Cement Siding, Lap Siding, Vertical Siding, Shapes, Soffit, Porch Ceiling, and 7/16" Trim installed on or before September 30, 2013.Mar 22, 2014 · This type of siding does a great job of protecting houses from the elements because it is partly made up of cement, a solid and structurally sound material. However, there are still problems with fiber cement siding that can occur. Homeowners can end up dealing with rotting fiber cement among other problems due to improper installation.