Condensation occurs when water vapour is cooled to the point where it condenses as water droplets on a cold surface. Greater accumulations of condensation will appear on colder window temperatures and homes with high humidity levels. To reduce the amount of condensation on your windows you can:
Reduce the humidity levels in your house
- Ensure that your home has appropriate exterior water barriers to protect your home from outdoor moisture.
- Your kitchen and bathrooms should have ventilation fans to expel indoor moisture.
- Fix all water leaks into the basement and do not allow any standing water in the house or against the foundation wall.
- If necessary, install a sump pump to remove excessive moisture from the soil under the slab.
- Disconnect any humidifiers (if not necessary).
- If required, use a dehumidifier.
Increase the surface temperature of your windows and frames
- Invest in window frames made out of vinyl, wood or fiberglass.
- Energy efficient windows made with a double or triple glaze and low-E (low-emissivity) will also increase the temperature of your windows and reduce condensation build-up.
- Draftproof your windows with weatherstripping tape.
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