Salt efflorescence on low wall in Barcelona
Riesgo medio · con precaución
Resumen rápido
Rising damp.
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¿Qué está pasando?
No DPC.
Causas más probables
No damp-proof course
altaPre-1960.
Hidden leak
mediaLocalised.
Poor ventilation
mediaVentilate.
Pasos de diagnóstico
- 1
Vacuum salts
HEPA.
⚠ Parada de seguridad: FFP2 and gloves. - 2
Air daily
Lower RH.
- 3
Don't paint over
Cause first.
Cuándo llamar a un profesional
Call for treatment.
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Coste orientativo
250–700 €
Inject and repaint.
Contexto local
Historic ground floors.
Preguntas frecuentes
Returns?
Cause first.
Injection works?
70–90%.
Drying time?
6–12 mo.
Related problems
- Damp patchShape and location tell you if it's rising damp, condensation or a leak.
- Bathroom mouldBathroom mould is usually condensation, not a leak.
- Bathroom ceiling stainUsually comes from upstairs.
- Bubbling paintSi la pintura hace burbujas en Barcelona hay dos causas: humedad detrás de la pintura (capilaridad o fuga) o problema de adherencia (aplicada sobre polvo o pintura vieja sin lijar). Antes de repintar hay que identificar cuál.
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