2012 Top 10 Most Common Home Inspection Discrepancies in Nashville
10. Vegetation encroaching on the house. Vegetation that encroaches on the home can damage the home, trap moisture against the home, and allow a path for insects, rodents and reptiles to enter the home. Keep vegetation at least 18” away from the home or components.
9. Window and door trim and caulk. Cracks or gaps in the caulk around door and window trim can allow water to penetrate behind the trim. This water can deteriorate the trim and the framing near the doors and windows. Any crack or gap in the trim or caulk should be repaired with new caulk and paint.
8. Brick veneer stress cracks. These cracks are most likely located near the corners of doors and windows, or at the down-slope corner of the home. Brick veneer cracks are frequently an indication of water management failure. Repair any crack in the brick veneer that exceeds 1/8 inch in width.
7. Roof penetration boot cracks. The rubber-like neoprene component of roof penetrations (roof boots) for plumbing vents can crack after about 7 years and cause roof leaks. Use of caulk is only a temporary repair. These cracked components need to be replaced.
6. Condensate drains. HVAC condensate drains that terminate at the foundation wall can allow significant moisture to accumulate at the foundation wall and possibly enter the crawl space. Condensate drains should terminate at the exterior of the home, at least 18” from the home, and to terrain that slopes away from the home.
5. Grading and lot drainage. The grade of the soil adjacent to the home can allow moisture to flow toward the home and weaken the foundation or enter the crawl space or basement and create an environment conducive to mold. HABITEC recommends at least a 6” drop in grade over the first 10’ of horizontal space from the home.
4. Failing roof drainage systems including gutters, downspouts and extensions. Gutters that are full of debris, rusted or poorly sloped can allow water to overflow and drop to the foundation wall or backflow into the attic or house. Downspouts that are disconnected from the underground drainage components can allow water to drop at the foundation wall. Make sure these components are clean and function properly.
3. Inadequate crawl space moisture barrier. Some moisture will inevitably make its way to the crawl space. Having a crawl space moisture barrier of 6 mil plastic covering 100% of graded crawl space soil that slopes to a positive drain will help control moisture that does make its way to the crawl space.
2. Water in the crawl space. Water in the crawl space can cause either structural failure if allowed to pool at the foundation walls or around the piers, or mold to start growing on the wood components.
1. Crawl space mold. Moisture allowed to accumulate inside the crawl space can lead to mold in the crawl space. Forty percent of the air that enters the home comes from the crawl space. Mold can be hazardous to your health. Make every effort to prevent moisture accumulation in the crawl space.
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