Guides
damp in the house
Damp at home: diagnose it before you buy anything
A step-by-step way to tell condensation, indoor vapour, rising damp and leaks apart. What to measure, what to watch, when not to buy a dehumidifier.
condensation on windows
Window condensation: when it is normal and when it is a warning
Why glass runs with water, how to use dew point, and what changes between single glazing, double glazing and a cold reveal.
mould in the house
Mould at home: prevention, removal, DIY limits
How indoor mould gets going, what to do in practice, and when to stop. A building guide, not a medical one.
which dehumidifier to buy
Dehumidifier: when it actually helps (and when it is wasted money)
Honest criteria for whether a compressor dehumidifier is the right tool. No ranking of untested models.
rising damp
Rising damp: how to recognise it (and what not to buy)
Stains from the skirting, salts, crumbling plaster. How to tell it from condensation and when you need a surveyor.
air the house in winter
How to air a house in winter without wasting heat
Why a tilted window all day both cools and humidifies, and why three minutes fully open works better.
drying clothes indoors humidity
Indoor laundry: how much moisture it adds (and what to do)
A full wash can put litres of water into the air. When to air, when to dehumidify, when to move the rack.
mould windowless bathroom
Mould in a windowless bathroom: extractor before dehumidifier
Why a portable unit in the lounge will not fix black silicone, and how to spec an extractor with a humidistat.
mould behind wardrobe
Mould behind a wardrobe: dead corner, thermal bridge, or both
Why the gap between furniture and an external wall stays damp, and what to do before anti-mould paint.
dehumidifier kwh cost
Dehumidifier electricity use: estimate it from your bill
Watts × hours × your €/kWh. Why IgroCasa does not bake in a tariff, and how to use the calculator.
MVHR indoor humidity
MVHR and humidity: when it belongs (and when it is another project)
What MVHR does to indoor vapour, what it does not do to rising damp and leaks, and why Qordac has no invented plant partners.
how to use a hygrometer
Hygrometer: how to use it (and why it is the first purchase)
Where to put it, what error to expect from a cheap unit, how to keep a small log.