Insulation hatch pattern?

Hello!

I am searching how to insert an insulation hatch pattern in my drawing ( a house with detailed roof and wall construction).

You surely know how the typical insulation hatchpattern looks like, it's a kind of snake between two lines.

I know how to make new Hatch pattern with the .pat file, but for curves, I would like to know if there is a solution. Or perhaps a pattern based on an image?

Thanks