Matt Risinger discusses some of the best practice methods for window installation. The most important thing about window installation is ensuring the finished product does not leave a leaky window, because that means air is passing through and the installation wasn't so great since air seal is a big deal with windows. Assume that all windows can and will leak, since every window leaks over time. Manufacturers don't tell you which one leaks, even though they're all bound to with time, so sill protection is huge and plenty of people forget that you need to prevent any potential damage. First you set the window in and make sure the position is correct, and then to secure it to the house it's better to use roofing nails since they tend to be sturdier by make and avoid any window jostling from wind. There are some pretty interesting and important details that are easy to miss during window installation, tune in to the full video before you end up with leaky windows!