Y




Y- A "Y" shaped plumbing fitting.



Yard of concrete- One cubic yard of concrete is 3' X 3' X 3' in volume, or 27 cubic feet. One cubic yard of concrete will pour 80 square feet of 3 ½" sidewalk or basement/garage floor.



Yoke- The location where a home's water meter is sometimes installed between two copper pipes, and located in the water meter pit in the yard.


 

 

 

 

 


Z




Z-bar flashing- Bent, galvanized metal flashing that's installed above a horizontal trim board of an exterior window, door, or brick run. It prevents water from getting behind the trim/brick and into the home.



Zone- The section of a building that is served by one heating or cooling loop because it has noticeably distinct heating or cooling needs. Also, the section of property that will be watered from a lawn sprinkler system.



Zone valve- A device, usually placed near the heater or cooler, which controls the flow of water or steam to parts of the building; it is controlled by a zone thermostat.



Zoning- A governmental process and specification which limits the use of a property e.g. single family use, high rise residential use, industrial use, etc. Zoning laws may limit where you can locate a structure. Also see building codes.