Depending on the size of your baffle, you might want to use at least 3 screws per side (each corner, as well as the middle). Using glue or liquid nails will seal it well, probably wouldn't hurt to throw 4 or more screws on there. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif