There’s a wide variety of issues that can lead to defects in residential and commercial construction, but the most common relate to poorly trained contractors, finds a new analysis based on four years of research from LJP Construction Services.
Poor workmanship, misinterpretation of plan details, and deviations from manufacturers’ recommendations are the top culprits causing construction deficiencies, the study notes. For single-family homes, the most common problems involve: 1)Exterior weather barriers 2)Structural (wood) framing 3)Mechanical, electrical, and plumbing systems 4)Window and door installations.
The average deficiency rate for single-family homes is 3% nationally, according to the study. But that figure ranges from 1.6% in California and 1.7% in Nevada, according to the analysis for more than 2,000 construction projects in 26 states.