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Term Definition
Shower Stall. A compartment where water is showered on a person.  
Shower. A bath in which water is showered on the person.  
Shrinkage Cracking. Cracking of a structure or member due to failure in tension caused by external or internal restraints as rction in moisture content develops.  
Shrinkage Cracks. In asphalt paving, interconnected cracks forming a series of large blocks usually with sharp corners or angles; frequently they are caused by volume change in either the asphalt mix or in the base or subgrade.  
Shrinkage Temperature Steel. Reinforcing bars laid at right angles to the principal bars in a member, for the purpose of preventing excessive cracking caused by drying shrinkage or temperature stresses in concrete.  
Shrinkage. 1. In gypsumboard joints, a slight concave depression in the joint treatment usually due to using too thin a mix of joint compound; also called a Starved Joint. 2. The decrease in volume, or contraction, of a material by the escape of any volatile substance, or by a chemical or physical change in the material. 3. Decrease in volume on drying. 4. Loss of bulk of soil when compacted in a fill; usually is computed on the basis of bank measure.  
Shroud. Housing over condenser, evaporator or fan.  
Shrub Moving. The digging out of a shrub with its root system intact, to relocate it to a different place.  
Shunt. A conductor joining two points of a circuit, through which more or less of a current may be diverted.  
Shut-off Valve. A valve used in a supply line to either turn on the liquid or turn it off, seldom used to rce flow.  
SI. French. System International d Unites; International System of Units.  
Sick Building Syndrome (SBS). Describes situations in which building occupants experience acute health or discomfort effects that appear to be linked to time spent in a particular building, but where no specific illness or cause can be identified; the complaints may be localized in a particular room or zone, or may be spread throughout the building.  
Side and End Matched. Wood strip flooring that is tongued and grooved on sides and ends.  
Side Hill. A slope that crosses the line of work.  
Side Jamb. The vertical pieces to a window or door opening on which the door or window rest.  
Side Lumber. A board from the outer portion of the log. ordinarily one produced when squaring off a log for a tie or timber.  
Side Seams. seam running the length of the carpet; also called a Length Seam.  
Side Vent. A vent that connects to the drain pipe through a 45 degree Y or less.  
Side Yard. The space between a building and the side property line.  
Side-Grained Wood. Flat-grained lumber.  
Sidelap. The shortest distance in inches in which horizontally adjacent elements of roofing overlap each other.  
Sidelight. A tall, narrow window alongside a door.  
Sidewalk Doors. steel or aluminum doors in the plane of a sidewalk leading to a basement area.  
Sidewalk. A walk for pedestrians at the side of a street.  
Siding, Steel. see Steel Siding.  
Siding. The outside finish of an exterior wall.  
Sienna. A pigment obtained from the earth which is brownish yellow when raw; orange red or reddish brown when burnt.  
Sieve Analysis. Determination of the proportions of particles of the granular material lying within certain size ranges on sieves of different size openings; see Gradation.  
Sieve. A metallic sheet or plate, woven wire cloth, or similar device, with regularly spaced openings of uniform size, mounted in a suitable frame or holder for use in separating material according to size; also called a Screen; in laboratory work an apparatus in which the apertures are square for separating sizes of material.  
Sight Gauge. see Sight Glass.  

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