Flashing, shaped in the form of a Z, which is used along a horizontal edge between abutting vertical exterior wall panels. Any water that seeps into the joint is then directed outward by gravity to the outside of the wall.
T-shaped vinyl strips used to form expansion joints in concrete slabs are inserted into the concrete immediately after finishing. Once the concrete is set, the top strip is peeled away to expose the concealed joint.
The calculation of the amount of light needed in a room done by dividing the room into zones and determining the needs of each particular area. The Illumination Engineering Society has advised the lighting requirements of each zone: the ceiling cavity, the room cavity and the floor cavity.
Rules and regulations controlling the use of land, which is broken down into districts and determines how private property is to be used or what construction is allowed. Zoning may be either commercial, residential, industrial or agricultural. Zoning also restricts height limitations, noise, parking, open space. Residential zoning may consist of single-family, two family or apartments.
Ordinances created by local government to cover real estate development, including structural and esthetic points. They usually define usage classifications from agricultural to industry and also building restrictions such as minimum and maximum square footage requirements and violations penalties and procedures.
Regulations determined by each municipality to establish different zoning restrictions and classifications, for example building height, type of buildings, etc. Penalties are assessed for violation of zoning ordinances. In some instances, variations to zoning ordinances are allowed and are called variances.