such an angle as to capture items that might have fallen down the drain allowing you a final chance to retrieve them before they disappear down the pipes. Home Improvement Glossary sliding windows Sliding windows open horizontally and bypass each other in separate tracks mounted on the header jamb and sill. Home Improvement Glossary slumping The amount of fall or collapse in mortar or concrete. Home Improvement Glossary snap-off screws Snap-off screws are designed so that the heads literally snap off below the surface of the floor to allow you to repair squeaks in the flooring without leaving a visible sign. Home Improvement Glossary soffit The flat boards under a roof's overhang. Home Improvement Glossary soldered sweat fittings Pipefittings that have been soldered to seal the connection. Home Improvement Glossary spade bit Spade bit is an inexpensive wood-boring instrument that looks like a paddle with a triangular point on the end. Home Improvement Glossary spalling Spalling is when chips and chunks break off a surface, such as concrete, usually caused by weathering. Home Improvement Glossary spauled Brick that has popped out of the wall Home Improvement Glossary spline 1. Rubber or neoprene cording that holds screening material in a window or door frame. 2. Ribbon-like finishing piece that holds in sheets of cane on furniture. Home Improvement Glossary splining tool Looks like a pastry cutter with a convex roller on one end and a concave roller on the other end. Use this to push spline into the grooves around a