Updated: Feb 22, 2019
It is common to notice mold around the window panes of windows and doors in the winter. It seems you clean it away and it makes a grand re-entry in no time. That is certainly reason to be concerned since mold can cause health issues.
What Causes It
During the winter months we have our homes sealed as tightly as possible to keep the cold weather outside. The fact is those windows are caught right in the middle of the warm indoor temperatures and the cold outside air, making it the perfect combination to produce condensation. Whenever windows are drafty or not properly sealed, they sweat and moisture will build up around the edges. Since the moisture has to go somewhere, it falls onto the sills and frames causing the wood trim to soak it up and thus, mold is formed: moisture, warm cozy air, and wood for sustenance, makes the perfect climate for it to breed and grow.
What to do About It
The surface mold fortunately cleans up easily with standard cleaning products. However, unless the main issue is resolved, it will continuously reappear and could develop into a major mold problem. A few options are as follows:
Use caulk or insulation material to fill in gaps. This will prevent air drafts as well as improve your utility bill.
Avoid closing blinds during sunlight hours. The warmth from the sun will help dry out the moisture.
Wipe moisture from windows on a daily basis. It’s not a permanent fix, but it is a solution to prevent mold re-growth.
Have quality-insulated windows installed.
Winter mold caused by temperature differences and condensation is temporary. As long as it is cleaned up on a regular basis to prevent the wood and any other surrounding structures from being constantly wet, the mold will remain on the surface.
Rather than stressing about it, contact a mold inspector. Mold professionals are trained and skilled in identifying potential mold problems. An expert will be able to fully assess the problem and offer objective solutions.