Disputes between roofing contractors and home owners over the quality of work are not uncommon. Not only are roofing defects perhaps the most visible and aggravating of any construction defects, but they can cause substantial damages to the interior walls and furnishings. As a result, owners will not hesitate to sue a roofing contractor when potential problems appear. Consider the case of New Zion Baptist Church v. Mecco, Inc., 478 So.2d 1364 (La. 1985), in which a roofing contractor in Louisiana agreed to install a new roof on the church. The contractor specified a built-up type of roof marketed under the name "Ny-Clad" Almost immediately after the contractor installed the system, the roof began to leak, and church officials