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The bathroom: damp, slips and hot water
The bathroom: damp, slips and hot water: the one room that concentrates most household risks. One page each for extractor sizing and run-on time by room…
This launch guide maps the topic, the source base and the practical questions. Check the linked official authority before acting on a rule, deadline, price or safety requirement.
What this guide covers
The one room that concentrates most household risks.
One page each for extractor sizing and run-on time by room volume, why the fan is usually the wrong size, mould on silicone and grout and how to actually replace it, condensation on a cold outside wall, drying laundry in there, towels and how often to wash them, shower-head biofilm, drain smells and the trap that dried out, slips and grab-rail placement, bath-water temperature for a baby and for an older person, storing medicines in a humid room and why the cabinet is the worst place, electrical zones, and a heated floor over a leaking joint.
How to use it
Use The bathroom: damp, slips and hot water to understand the inputs, units and assumptions before relying on an output. A useful result should be reproducible from the named source rather than presented as an unexplained score.
The page keeps the main question, its evidence base and its limits together in one canonical place. That makes it useful as a quick orientation and avoids splitting a broad subject into shallow pages before each narrower answer has enough verified material of its own.
Search vocabulary in four languages
Terminology changes across borders. These are example phrases people use for the same subject in Estonian, Finnish, Russian and English; they are included as a practical vocabulary aid, not as hidden keywords.
| Language | Example phrase |
|---|---|
| Estonian | vannitoa ventilaator võimsus |
| Finnish | kylpyhuoneen ilmanvaihto teho |
| Russian | плесень в ванной на швах как убрать |
| English | how powerful should a bathroom extractor fan be |
Evidence and provenance
The evidence map below records the primary, official or openly licensed material chosen for this guide. It is deliberately visible so a reader can tell the difference between a rule published by an authority, a measured dataset and an editorial explanation.
Source: EN 16798-1 and national building-code extraction rates (facts cited), WHO IAQ: Dampness and Mould, published fall-injury location data (open). · checked 2026-09-09
Source names are preserved even where an authority changes its web address. No figure is added to this launch page unless it is already present in the cited source description or can be computed from a named dataset.
Scope and boundaries
This guide owns the explanatory layer for the topic. Personal decisions, diagnoses, legal determinations and live availability remain with the relevant professional or official service.
Connected TempoLife guides
The following paths are the intentional hand-offs named in the brief. They keep adjacent subjects separate while making the next useful reference easy to find.
Mould
Continue to the related TempoLife reference.
Hotwater
Continue to the related TempoLife reference.
Why it belongs on TempoLife
/mould and /hotwater.
Frequently asked questions
What does this guide cover?
The one room that concentrates most household risks. One page each for extractor sizing and run-on time by room volume, why the fan is usually the wrong size, mould on silicone and grout and how to actually replace it, condensation on a cold outside wall, drying laundry in there, towels and how often to wash them, shower-head biofilm, drain smells and the trap that dried out, slips and grab-rail placement, bath-water temperature for a baby and for an older person, storing medicines in a humid room and why the…
What evidence does it use?
EN 16798-1 and national building-code extraction rates (facts cited), WHO IAQ: Dampness and Mould, published fall-injury location data (open).
Where does this guide stop?
It explains the topic and points to primary or official sources. It does not replace a qualified professional, an official decision, or advice based on your own circumstances.
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