Mold Assessment in Kenner When the Ground Has Moved the House
An assessment that connects the damp to the crack, joint or failed seal that let the water in, or says plainly that the two are unrelated.
Mold Assessment quote in Kenner
Tell us what you can see or smell, roughly where in the house it is, and whether the house is raised or on a slab. Those three things narrow it more than the size of the patch does, because they point at how the water is arriving rather than where it ended up.
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Kenner's measured ground loss and pre-1971 houses
The same study measured the maximum urban rates of elevation loss, between 30 and 47 millimeters a year, in the area around Louis Armstrong International Airport, and rates from 2 to more than 20 millimeters a year in areas including Kenner and Harvey.
Source: Fiaschi, Allison and Jones, Vertical land motion in Greater New Orleans, Science Advances, via PubMed Central, accessed 2026-09-22
Kenner has 27,908 housing units with a median year built of 1978, the second newest housing stock on the south shore. Only 296 units, 1.1 percent, predate 1940, the lowest pre-war share of any place in this service area apart from Belle Chasse. 9,493 units were built in the 1970s alone.
Source: United States Census Bureau, American Community Survey 2020-2024 five year estimates, accessed 2026-09-22
Kenner records 1,013 National Flood Insurance Program multiple loss properties, of which 104 are severe repetitive loss, 332 have four or more paid losses and 735 predate the city's first flood insurance rate map of June 25, 1971.
Source: Federal Emergency Management Agency, OpenFEMA dataset NFIP Multiple Loss Properties, data as of August 2, 2026, accessed 2026-09-22
The city of Kenner, community 225201, holds Community Rating System Class 6, a 20 percent discount in the special flood hazard area and 10 percent outside it. Its first flood insurance rate map took effect on June 25, 1971.
Source: Federal Emergency Management Agency, National Flood Insurance Program Community Status Book, accessed 2026-09-22
What a Kenner survey looks for where the ground moves
In Kenner the question behind a damp wall is often what moved. A 2025 study using satellite radar measured elevation loss from 2 to more than 20 millimeters a year in areas including Kenner, near a hotspot around the airport that ran faster still. Ground that settles unevenly opens joints: at a window head, where a slab meets a wall, around a pipe penetration. Movement is not a mold mechanism by itself. It is the reason a leak exists, and a survey here records the cracks, the doors that no longer close and the moisture readings on the same plan, so you can see whether the damp lines up with them.
The Kenner timeline to write down before the survey
Write down what has changed and when before anyone arrives: a door that started sticking, a crack that widened, a stain that appeared after it. That timeline is evidence nobody else can supply. Kenner is an incorporated city with its own flood rating, Class 6, and 735 of its 1,013 repeat-loss properties predate the city's first flood map of June 1971, so an older house here may never have been built to an elevation rule. If the house is one of the 9,493 built in the 1970s, the survey should also look at the cooled exterior walls, since movement and condensation can both be at work.
Which openings have changed
Doors, windows and cracks that moved recently point at where the envelope opened. Photograph them with a date before the visit.
Whether the damp follows the crack
If the wettest readings sit along a crack line, the repair is the joint. If they do not, the water is arriving another way, often out of the air.
Who needs the finding afterwards
A structural engineer, a plumber or an insurer reads a survey differently. Say which one, so the report measures what they will ask about.
Which came first, the crack or the stain?
Give us the order and roughly the months. A survey in Kenner starts from that timeline.
After the Kenner survey: removal or drying
Kenner questions about movement, cracks and mold
Is my Kenner house sinking?
A mold survey cannot tell you that, and it would be wrong to guess. The regional record shows that most of urban Greater New Orleans is relatively stable while specific zones lose elevation much faster, with measured rates in areas including Kenner from 2 to more than 20 millimeters a year. The survey records what the house is showing, cracks, sticking doors, open joints, and whether the damp follows them. Movement itself is a question for a structural engineer.
Do I need the air tested?
Rarely. The CDC does not recommend mold testing, and the EPA says that where growth is visible, sampling is usually unnecessary. In Kenner the useful work is finding the gap that lets water in, which a moisture meter and a flashlight do better than a lab.
Send the Kenner timeline and a few photos
A person reads it and says whether a survey is the right next step, or whether an engineer should look first.