Mould growth on and around windows isn’t uncommon, in fact it’s one of the most common areas you’ll find mould. Although we rarely let it get out of hand as it’s in our view each day, it still makes an unsightly mess of our windows. We’ll go over what to do if you find window mould, as well as how to remove it and when to call a professional.
What Causes Window Mould?
Mould surrounding a window is typically caused by a buildup of dirt, dust and debris around the window. Air flow is blocked by this foreign matter allowing for a great surface for the mould to grow on. Mould rarely grows on the glass; however the caulking and sills tend to grow mould fairly easily. Once mould begins to grow, it eats away at the caulking and can damage or permanently stain it. Mould can also grow between the panes of glass, along the frame and tracks.
Mould requires moisture; it can get this food from the change in temperature between outdoors and indoors, excess humidity inside the building or a nearby leak.
Once mould begins to grow, it eats away at the caulking and can damage or permanently stain it.