An unreinforced masonry building is a type of building where load bearing walls, non-load bearing walls or other structures, such as chimneys, are made of brick, cinderblock, tiles, adobe or other mas
UMBs destroyed by the 1990 Manjil–Rudbar earthquake in Iran.
Steel braced frame added to an unreinforced masonry bearing-wall building as a seismic retrofit, Petaluma, California