No house is perfect. Even the best built and best maintained homes will always have a few items in less than perfect condition. Below are some of the items we most commonly find when inspecting a home: Roofing Problems with roofing material are the single most common defect we find. Usually it doesn’t mean the roof needs replaced, simply that it is in need of maintenance or repair. Ceiling stains Caused by past or present leaks, ceiling stains are very common. It can be difficult to tell.