Definition of the term Sill
The lowest member of the frame of a structure, resting on the foundation and supporting the floor joists or the uprights of the wall. The member forming the lower side of an opening, as in a door sill, window sill,…
Definition of the term Silicone Sealant
A sealant having as its chemical compound a backbone consisting of alternating silicon-oxygen atoms.
Definition of the term Sight Line
The line along the perimeter of glazing infills corresponding to the top edge of stationary and removable stops. The line to which sealants contacting the glazing infill are sometimes finished off.
Definition of the term Siding
The finish covering of the outside wall of a frame building, whether made of horizontal weatherboards, vertical boards with battens, shingles, or other material.
Definition of the term Side Sewer
The portion of the sanitary sewer which connects the interior waste water lines to the main sewer lines. The side sewer is usually buried in several feet of soil and runs from the house to the sewer line. It is…
Definition of the term Shutter
Usually lightweight louvered or flush wood or nonwood frames in the form of doors located at each side of a window. Some are made to close over the window for protection; others are fastened to the wall as a decorative…
Definition of the term Shutoff Valve
The valve that allows water supply to be cut off to one fixture without affecting the water supply to the entire house or building. Common for use with clawfoot tubs, sinks, and toilets.
Definition of the term Short Circuit
A situation that occurs when hot and neutral wires come in contact with each other. Fuses and circuit breakers protect against fire that could result from a short.
Definition of the term Shoring
A temporary support erected in a trench or other excavation to support the walls from caving in.