A homeowner’s attempt to reduce glare with solar film ended in seal failure and inter-pane fogging. The culprit wasn’t heat—it was a common installation mistake that’s easily avoidable with proper technique and trimming.
Window film seems like the perfect solution for scorching south-facing windows, but applying the wrong type can trigger a hidden disaster beneath the glass. When you finally peel back that corner, you might find something that can’t be fixed with a simple wipe.
That small slot along your window frame isn’t a manufacturing flaw—it’s a trickle vent designed to prevent damp and mould. Most homeowners paint it shut without realizing, blocking crucial ventilation that keeps moisture levels healthy. Here’s how to find yours and restore it.
