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Unlike homes with basements or crawl spaces, a slab floor is solid concrete with no structural wood flooring system. For homes with this type of floor, soft soil or bad compaction is almost always the culprit. Once the soil is compromised, the slab will shift, and this creates the sagging or sinking effect. Pressure from that shift will sometimes crack the slab itself, causing high and low places in the flooring. To fix this type of damage, you need concrete slab repairs.
Water frequently plays a major role in floor sagging, as moisture travels through the soil around your foundation. In Roanoke, runoff from surrounding hills and periods of heavy rainfall can allow water to reach the sill plate, wood beams, and floor joists. These wooden components rest directly on the foundation and form the framework that supports your floor. When moisture remains in contact with the framing, deterioration begins, leading to structural instability and the need for sagging floor repair in Roanoke, Virginia.
Sagging floors do not always require standing water to develop. Elevated humidity levels, common throughout the Roanoke Valley, can slowly affect beams and joists. Wood absorbs moisture from humid air, which weakens the material over time. As the boards soften, they compress under the weight of the home, allowing floors to sink gradually.
Insects are another frequent cause of damage to floor systems. Termites are well known in this region, and powderpost beetles are also common but often difficult to spot. These pests deposit eggs inside wooden framing, and the larvae feed on the wood itself. Over time, this hidden activity can significantly compromise the strength of the flooring system.
Human error can contribute to sagging floors, particularly in homes that have undergone multiple updates. Plumbing, electrical, or HVAC work may require alterations to framing. When joists or even the main support beam are cut or notched, weak points are introduced that may eventually crack or sag.
Construction practices have evolved, and many older Roanoke homes were built before modern codes were in place. Support beams may be undersized or posts spaced too far apart, placing added strain on the floor system and increasing the risk of sagging.
Homes over 50 years old may also contain materials that have exceeded their intended lifespan. Builders often used wood shims to level framing during construction. As these shims age, they compress or deteriorate. At Acculevel, we replace failing shims with steel shims to improve load distribution and prevent compression.
Technology and lifestyle changes can also affect floor performance. Before pressure treated lumber became widely used, untreated wood was standard and more vulnerable to moisture and insects. Modern upgrades such as stone flooring, heavy countertops, pool tables, or hot tubs add weight to the structure. These additions increase stress on already weakened framing, accelerating the need for sagging floor repair in Roanoke, Virginia.
Contact Acculevel! We provide free estimates on sagging floor repairs.
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