Blog

Do extractor fans need to vent outside? Yes: a fan that stops in a loft or ceiling void only moves the damp. What the rules say and the one exception.

How to check house ventilation: list every vent, test each fan with tissue, log humidity and know when to call an engineer. Five simple tests.

Why ventilation is important in a house: it clears daily moisture, keeps gas appliances safe and protects timber floors. Four vital reasons.

What does a thermo hygrometer do? It shows air temperature and relative humidity together. Three home uses, what the two numbers mean and a dew point warning.

Where is the highest humidity in a house? The bathroom peaks, but the highest readings sit at cold surfaces. 6 hot spots and how to check each one.

How long does a hygrometer take to adjust? About an hour after a move, overnight after a salt test. Four situations, what the sources say and my own rules.

Do hygrometers need batteries? Digital ones do, mechanical dials do not. What flat batteries do to a reading, and which type suits a damp house.

How to increase bedroom humidity without a humidifier: 6 safe methods ranked by effect, plus the one trap (wet laundry) and a target that avoids damp.

Do hygrometers go bad? Yes, slowly: drift, dirty sensors and flat batteries. Three ways they fail, how to spot each one, and when to replace instead of fix.

Hygrometer vs humidistat: a hygrometer only shows humidity, a humidistat reads it and switches a machine on or off. Which one you need and why not both.

Hygrometer vs moisture meter: one measures humidity in the air, the other measures dampness in a wall or timber. When each tool answers the question you have.

How to read a hygrometer: find the %RH number, let it settle, then compare it with 30 to 50% and the 60% ceiling. Covers digital, dial and wet-bulb types.