Attic Ventilation Allows water vapor to escape and keeps the house cooler in the summer by preventing solar heat Four types: Soffit vent- creates the required intake ventilation at the eave Ridge vent- effective because its located at highest point on roof Gabled vent- located high in the wall at opposite ends of the attic. Helps create cross draft in a wind Through roof vents- resemble inverted cake pans and are flashed into roofing material
Control joint- an intentional, linear discontinuity in a structure or component, designed to form a plane of weakness where cracking can occur in response to various forces so as to minimize or eliminate cracking elsewhere in the structure
Isolation Joint- joints that isolate the slab from the wall, column, or drainpipe
Concrete Masonry Unit (CMU)
A block of hardened concrete, with or without hollow cores, designed to be laid in the same manner as a brick or stone.