Who makes it? Greg Amundson, a dealer for Lindal Cedar Homes in Scandia who decided to pursue his inventions when his home building business slowed.
The inspiration: The idea came to him during a sleepless night.
How it works: It's a flexible, triangular-shaped trim piece with tapered "wings" that can be sealed into any 90-degree angle with an applied 3M adhesive.
Why it works: It's made from a smooth, mold-resistant PVC (polyvinyl chloride).
Colors: Can be customized.