This document provides a comprehensive guide on understanding and preventing condensation on windows, detailing types of condensation and practical solutions. It addresses common causes such as humidity and indoor heating, and offers measures like using dehumidifiers and proper ventilation to mitigate the issue. Additionally, it covers exterior condensation, seal failures, and maintenance tips to ensure window performance.

1. Understanding and
Preventing
Condensation on
Windows: Tips &
FAQs
A Comprehensive Guide to Managing
Window Condensation

2. Condensation 101:
Why Your Windows
Might Be Sweating
Condensation on windows occurs when warm, moist
indoor air contacts the cooler surface of the glass. This
common issue can affect the comfort and energy
efficiency of your home. This guide covers:
Types of Condensation:
Inside, outside, and between panes.
Practical Solutions:
Effective methods to address and prevent condensation.

3. Condensation
Inside the
Window
Common Causes & Effective
Solutions

4. CAUSE:
Warm air from indoor heating
trapped by window coverings
like curtains or blinds..
SOLUTION:
Choose blinds that can be
tilted or keep curtains
slightly open to allow air
Trapped Warm Air

5. CAUSE:
Increased humidity from cooking,
bathing, or high occupancy, and
seasonal changes.
SOLUTION:
Use a dehumidifier to keep indoor
humidity levels between 30-50%.
Ensure proper ventilation by using
exhaust fans in kitchens and
bathrooms, or by opening windows
when cooking or bathing.
High Humidty Levels

6. Houseplants
CAUSE:
Plants release moisture into the air,
contributing to higher indoor
humidity.
SOLUTION:
Move plants away from windows
or reduce their number to lower
indoor humidity levels and
minimize condensation.

7. Condensation
Outside the
Window
Understanding Exterior
Condensation

8. Energy-Efficient Windows
CAUSE:
Condensation often appears on the outside
of high-efficiency windows during late
summer or early fall when temperatures
drop overnight.
SOLUTION:
This indicates that your windows
are effectively insulating your
home. No action is needed as this is
a sign of good performance.

9. Weather Conditions
CAUSE:
Exterior condensation typically occurs in
the early morning due to drops in
temperature overnight.
SOLUTION:
Wait for the sun to rise, which will
naturally warm the glass and cause
the condensation to evaporate.

10. Condensation
Between the
Glass Panes
Identifying and Addressing
Internal Condensation

11. Failed Seals
CAUSE:
Moisture between glass panes
indicates that the seals have failed,
leading to a loss of insulating gas.
SOLUTION:
Contact a professional window
service to replace the affected
windows, which will restore their
efficiency and insulation.

12. Cracks in the Glass
CAUSE:
Cracks allow moisture to seep
between the panes, potentially
compromising structural integrity
and insulation.
SOLUTION:
Regularly inspect windows for any
cracks or damage. Replace
damaged panes promptly to avoid
further issues and maintain window
performance.

13. FAQs
Frequently Asked Questions

14. QUESTION ANSWER
Why do I see condensation on
my windows only in the winter?
Winter conditions create a larger temperature difference between indoor
air and the cold outdoor air, leading to condensation on the glass surface.
How can I prevent condensation
in my home?
Maintain proper indoor humidity using dehumidifiers, ensure good
ventilation, and avoid blocking air circulation around windows with heavy
coverings.
Is condensation between panes
a serious issue?
Yes, it indicates a failure in window seals, which compromises insulation.
Typically, this requires window replacement to address.
Can window condensation
cause mould?
Prolonged condensation can lead to mould growth on windowsills and
frames. Managing humidity and ensuring proper ventilation can help
prevent mould.
What causes window seals to
fail?
Temperature fluctuations and the natural aging of materials can cause
seals to fail. If windows are older, replacement might be necessary.

15. Take Action
Against
Condensation
Contact Linton Window &
Door today for expert
advice and solutions to all
your window needs.