Construction Defects: Types of Building Issues – Improper Design

Improper Design: Asphalt/Concrete Mixture not per Specifications

Construction defects can stem from the concrete and asphalt that surrounds your house. This could be due to improper design: asphalt/concrete mixture not per specifications. This kind of issue can result in a construction defect that may not appear at first, but will become more obvious with time. These installation deficiencies could cause a varying in the thickness of the asphalt. Again, this may not be evident right away but if you add an issue like evasive soil, the defect will become more severe. More Information on this website

Evasive soil, when wet, will swell and when dry will shrink. Depending on the climate, specifically the rainfall, evasive soil can be very damaging to concrete. The soil movement is unpredictable. At one time it can swell, shifting the house one way, and once the soil dries, it can cause the house to shift the other way. This constant soil movement can cause all kinds of issues. It can create large cracks varying in thickness. Improper design: asphalt/concrete mixture not per specifications may increase the defects you experience with expansive soil.

Lack of Steel Reinforcement

Concrete steel reinforcements are used to minimize cracks. There are some in the industry who believe the lack of steel reinforcement can be replaced with supplemental admixtures. However, the lack of steel reinforcement will allow random cracking to occur and allow any expected cracks to become wider than normal. Proper steel reinforcement will minimize curling and displacement and increase the strength of the concrete slab.

Lack of Cross-Ventilation

An HVAC system needs to promote proper cross-ventilation. The lack of cross-ventilation can create issues with air quality and possibly lead to moisture buildup. The presence of moisture trapped in a humid area where there is a lack of cross-ventilation could be an inviting environment for mold. Lack of cross-ventilation can be the result of improper installation of the HVAC system.

Insufficient Ventilation Openings in Surrounding Walls

If you believe that you have poor air quality in your home, it can be the result of insufficient ventilation openings in surrounding walls. You have to rely on the architect, construction engineer, and/or builder to ensure there is not insufficient ventilation openings in surrounding walls.

Inadequate Clearance between Earth and Wood Components

If there is inadequate clearance between earth and wood components, you could experience the onset of wood-destroying organisms (WDOs). For example, there needs to be a clear space between the bottom of a floor and an area of unimproved ground. Inadequate clearance between earth and wood components should be avoided by following the building guidelines for your state.

Water entry into Crawlspace

If there is water entry into a crawlspace, this can lead to other very damaging issues. Mold and mildew grow best in humid, dark, low-ventilated and wet areas. Crawlspaces match these requirements, especially when water enters the area. Mold can be easy to remove or very difficult to remove. It depends on how much mold is present. Water entry into crawlspaces can also cause leaks to other areas of the house.

Lack of code-required access to Crawlspace

Once you discover there may be issues with your crawlspace, you need to decide on a repair plan. If there is a lack of code-required access to the crawlspace, you will not be able to complete a repair and in turn, whatever the construction defect may be can now affect other areas of your home. Lack of code-required access to crawlspace can turn a small construction defect into a crippling problem.

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