Problems / Damp and mould

Damp and mould: where the problem comes from and what to check first

A symptom visible on a wall, floor or joint rarely tells the whole story. MiWiki helps move from the problem to possible causes, related materials and decisions worth making before repair.

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Damp and mould w MiWiki

The list below comes from the MiWiki database. Search by topic, use case or problem to narrow it down quickly.

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Damp at window — practical guidance and quality checks

“Moisture at the window” requires determining the cause before selecting a fix. The visible symptom itself does not tell you which layer or stage has failed. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Damp behind furniture — practical guidance and quality checks

“Moisture behind furniture” requires determining the cause before selecting a fix. The visible symptom itself does not tell you which layer or stage has failed. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Damp beneath flooring — practical guidance and quality checks

Moisture under the floorboards is a hidden problem: it can cause the floor to swell, develop odors and degrade the underlayment before a visible mark appears on the surface. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Damp in corner — practical guidance and quality checks

“Moisture in the corner” requires determining the cause before selecting a fix. The visible symptom itself does not tell you which layer or stage has failed. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

How identify source of damp — practical guidance and quality checks

The source of moisture is identified by observing the time, place and conditions under which the mark appears, not by the color of the stain itself. The most important thing is to follow the order: documentation, identifying the cause, correct method and control of the result.

Moisture Fighting Checklist — practical guidance and quality checks

The damp checklist goes from securing the area and identifying the source, through drying, to inspection before re-finishing. The most important thing is to leave unresolved points as open with responsibility and deadline.

Mould in bathroom — practical guidance and quality checks

“Mold in the bathroom” means that the surface has remained damp for some time. Removing the tarnish without retaining moisture usually produces only a short-term effect. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Mould in kitchen — practical guidance and quality checks

“Mold in the kitchen” means that the surface has remained damp for some time. Removing the tarnish without retaining moisture usually produces only a short-term effect. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Mould on wall — practical guidance and quality checks

"Mold on the wall" means that the surface has remained damp for some time. Removing the tarnish without retaining moisture usually produces only a short-term effect. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Musty smell after renovation — practical guidance and quality checks

“Musty smell after renovation” requires determining the cause before selecting a fix. The visible symptom itself does not tell you which layer or stage has failed. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Peeling paint through damp — practical guidance and quality checks

“Paint peeling off due to moisture” requires determining the cause before selecting a fix. The visible symptom itself does not tell you which layer or stage has failed. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Poor ventilation room — practical guidance and quality checks

Poor ventilation causes the accumulation of water vapor and pollutants. The symptom usually worsens after bathing, cooking, drying laundry or keeping windows tightly closed. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Thermal bridges — practical guidance and quality checks

Thermal bridge is a locally cooler part of the partition. Repainting itself does not change the surface temperature or the risk of condensation. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

Water stains on ceiling — practical guidance and quality checks

A stain is a trace of water movement. The area visible on the ceiling is not always directly below the source of the leak. The most important thing is to stop the cause, document the condition and control the result before covering or collecting.

When anti-mildew paint alone is not enough — practical guidance and quality checks

Anti-mould paint may support the finish of a dry and prepared substrate, but will not repair leakage, thermal bridging or ineffective ventilation. The most important thing is to base your decision on measurements, extent and the consequences of covering the defect.