There are a few different ways to keep your screen tight when installing it. One way is to use a metal frame that you can stretch the screen over and then use staples or nails to secure it in place. Another option is to use clips or magnets that attach the screen to the framing. Whichever method you choose, make sure that you secure the screen tightly so that it doesn't flap in the wind or collect debris.

One way to ensure a tight seal on your pool enclosure screen is to use a bead of caulk around the edge of the frame before installing the screen. This will create a watertight barrier and help to keep out any pests or debris. You can also use a small piece of wood as a spacer between the screen and the frame while you're tightening down the screws, which will help to evenly distribute pressure across the entire surface of the screen.