A joist is a important part of a building's frame. It is a long, horizontal beam that supports the weight of floors, ceilings, or roofs. It helps to distribute the load evenly and make the structure strong and stable. Full definition
Following the closing, the Buyers discovered that the floor joists in the crawl space were rotted and also they suspected that there was mold in various parts of the house that had not been easily accessible during their previous visit to the house. (nar.realtor)
While the termite inspector did not discover any termites, he did discover dampness in the crawl space as well as fungi growing on the floor joists in the crawl space. (nar.realtor)
New on demand gas water heaters cost less money to operate than their electric counterparts, can be 90 - 95 % efficient, are extremely small, mount conveniently to foundation walls and vent directly out the rim joist of your home. (treehugger.com)