A portable, one-component polyurethane foam adhesive for attaching concrete and clay roof tiles to a roof deck. It is quicker and easier to install compared to traditional attachment methods such as screws, mortar, wire ties and clips. Minimal expanding TILE BOND™ also provides greater attachment strength while minimizing nail penetrations and reducing roof weight loads. With its easy to-use dispensing equipment, TILE BOND™ can be quickly and efficiently dispensed in a highly consistent manner, eliminating the need for expensive equipment and ratio monitoring.