A failure in a building or land and/or it components which causes the building or land, to suffer damage or not to function as intended. A defect can stem from improper construction, design workmanship and deficiencies in the products used in the construction. Examples of common defects include leaky roofs, improper drainage, defective pipe, improperly sloped pipes, slope failures, cracked foundations, and window leaks. The definition of a defect was further defined by the legislature when it enacted Civil Code Section 896 and 897 which is applicable to residential properties where the seller signed the purchase agreement on or after January 1, 2003.