This publication provides introductory technical guidance for civil engineers, architectural engineers, structural engineers and other professional engineers, architects and construction managers interested in materials and methods for sealing joints in building and infrastructure construction. Here is what is 1. TERMS, 2. JOINT MOVEMENT, 3. BUTT AND SHEAR JOINTS, 4. WIDTH TO DEPTH RATIO, 5. TEMPERATURE, 6. APPROXIMATE JOINT DIMENSIONS, 7. CALCULATION OF JOINT SIZE, 8. MATERIALS, 9. ELASTOMERIC SEALANTS., 10. STRUCTURAL SILICONE SEALANTS, 11. PREFORMED SEALANTS, 12. WOOL FELT, 13. RESILIENT FOAM, 14. ACOUSTIC SEALANTS, 15. BUTYL SEALANTS, 16. CHLOROSULFONATED POLYETHYLENE (CSPE) AND POLYCHLOROPRENE SEALANTS, 17. CURING, 18. SELECTION OF SEALANTS, 19. RADON, 20. FIRE RESISTANCE, 21. JOINT DETAILS