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By far the most frequent problem, it is responsible for the most common household aggravations, including water penetration into the basement or crawlspace and most basements eventually leak.
A number of respondents found this to be a significant defect. This includes such situations as insufficient electrical service, inadequate overload protection, and amateur (often dangerous) wiring connections.
Poor maintenance is a common problem with a number of homes. Signs of poor maintenance include cracked, peeling or dirty painted surfaces; crumbling masonry; makeshift wiring or plumbing; and broken fixtures and appliances.
As a result of problems in one or more other categories, damage is sustained by such structural components as foundation walls, floor joists, rafters and window and door headers.
Though not ranked as a number one problem, plumbing defects still rank high. This includes the existence of old or incompatible piping materials, as well as faulty fixtures.
Flaws in this category, such as windows, doors and wall surfaces, rarely have structural significance but may pose discomfort to the occupants due to water and air penetration. The most common culprits are inadequate caulking and/or weather-stripping.
In an effort to save energy, many homeowners have covered or sealed their homes, resulting in excessive interior moisture. Significant moisture can lead to rotting and failure of both the structural and non-structural elements.
This category includes miscellaneous components, Walkways, decks, patios, bushes and trees.