Sisäkosteus

Sisäkosteus refers to the level of moisture present in the indoor air of a building. It is an important factor for maintaining a healthy and comfortable living environment. In Finland, the recommended relative humidity level for indoor spaces is typically between 40% and 60%. Deviations from this range can lead to various problems.

High indoor humidity, often exceeding 60%, can foster the growth of mold and dust mites. These microorganisms can negatively impact indoor air quality and trigger or exacerbate respiratory problems, allergies, and other health issues for occupants. Excessive moisture can also damage building materials, leading to rot, structural weakening, and unpleasant odors. Common sources of excess indoor humidity include cooking, showering, drying clothes indoors, and inadequate ventilation.

Low indoor humidity, typically below 40%, can cause discomfort such as dry skin, irritated eyes, and a scratchy throat. It can also lead to static electricity and damage wooden furniture or musical instruments. Very dry air can make respiratory passages more vulnerable to infections. Sources of low humidity can include heating systems in winter, especially in cold climates, and insufficient air exchange.

Monitoring and controlling sisäkosteus is crucial. This can be achieved through proper ventilation, using exhaust fans in kitchens and bathrooms, avoiding drying clothes indoors or using a dryer, and ensuring adequate heating during colder months. Hygrometers are devices that can measure relative humidity, allowing for informed adjustments to ventilation and heating to maintain optimal indoor conditions. Managing sisäkosteus contributes to both the well-being of residents and the longevity of the building itself.