Efflorescence: deposit location versus water route investigation session

Efflorescence: deposit location versus water route

Map deposit height, weather exposure, first damp edge and drying direction. Photograph before cleaning so the exit pattern is preserved.

Browser-local draftNo session answers are sent to the server. Evidence balanceScores organize observations; they are not probabilities. No repair authorizationStop signals override the ordinary workflow.

Freeze the evidence

Record the condition before interpreting it.

Observed at Weather / equipment / water-use state First visible, audible or measurable change Location, direction and delay

Evidence ledger

Mark what raises or weakens each route.

Leave unknown items unmarked. Contradictory observations are useful evidence.

Ground or foundation moisture moving by capillarity

Moisture rises through porous masonry and leaves salts where evaporation occurs.

Raises fit +2 eachLower-wall concentrationPersistent ground moistureBroad horizontal band

Lowers fit −2 eachDeposit starts below a local pipe or penetration

Notes for this route

Rain entry through exterior masonry or joints

Wind-driven rain enters higher on the wall and exits at an interior evaporation zone.

Raises fit +2 eachWeather and wind dependenceHigher or localized patternExterior joint defects

Lowers fit −2 eachNo rain relationship and strong lower-wall band

Notes for this route

Local service water source

A pipe or condensate route feeds one masonry area and produces a concentrated salt deposit.

Raises fit +2 eachLocalized pattern near servicesDry-weather recurrenceWater-use or equipment relationship

Lowers fit −2 eachBroad seasonal ground pattern

Notes for this route

Decision points

Change one condition at a time.

An answer changes investigation order; it does not prove a concealed condition.

Is the deposit a broad lower-wall band or a concentrated higher patch?

YesNoUnknown

If yes: A lower band supports ground moisture; a high patch supports local or rain entry.

If no: Map the first damp edge during an active event.

Observed answer and evidence

Does the pattern change after rain or during dry-weather service use?

YesNoUnknown

If yes: Use the trigger to separate exterior and interior sources.

If no: Continue long-term moisture mapping before repair.

Observed answer and evidence

Safety interlock

Stop signals override scoring.

Mark the stop state when any listed boundary is present. Do not create a better clue by increasing exposure.

Do not seal or paint over active moisture without identifying the route.
Use appropriate precautions before disturbing old masonry coatings or contaminated deposits.

A stop signal is presentPause ordinary investigation and arrange an appropriate competent or emergency response.Safety note

Current conclusion

Explain what changed the ranking.

Leading pathway and why Strongest competing pathway Evidence still missing Smallest safe next action / handoff

Efflorescence: deposit location versus water route

Record the condition before interpreting it.

Mark what raises or weakens each route.

Ground or foundation moisture moving by capillarity

Rain entry through exterior masonry or joints

Local service water source

Change one condition at a time.

Is the deposit a broad lower-wall band or a concentrated higher patch?

Does the pattern change after rain or during dry-weather service use?

Stop signals override scoring.

Explain what changed the ranking.

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