Determine Roof Pitch & Angles

This is a square with a pivoting arm that has levels built into it with a track machine track. You can put it anywhere on any slope to find any angle. So this is a 12-square pitch. So you can lay it up on any slope. It shows you it's a 45-degree angle which is a 12-square pitch. You can also do outside corner angles. You can determine any outside angle. So you can lay it up to your outside corner of a wall to wrap trim around it