Using for ceiling in a 3 x 5'6" closet ceiling that the closet is being converted to a coffee and wine bar located in the kitchen (previously a laundry that was moved). Will give a bit of French country appeal to the ceiling. You cannot use a heavy glue such as construction glue. I looked up the adhesive(AKfix Instant Grab) from manufacture site. Adhesive Tube is $4.50 and does one box of 8 of these tiles. However shipping is $20 to California standard rate so for a small area to do consider this to your cost. For my small area plan to pre-paint these with light first coat of paint as I think it will keep the caulk clean up easier as over my head prior to adding the other paint coats.