How to properly caulk exterior windows for optimal insulation and weatherproofing?

To properly caulk exterior Windows for optimal insulation and weatherproofing, follow these steps:

1. Clean the window frame and remove any old caulk.
2. Cut the caulk tube tip at a 45-degree angle.
3. Apply a continuous bead of caulk along the window frame.
4. Smooth the caulk with a wet finger or caulk tool.
5. Allow the caulk to dry completely before painting or exposing it to water.

By following these steps, you can effectively seal your exterior Windows to improve insulation and weatherproofing.