Question

reasons of racking back on a wall

Answer 1

The stepping back of courses of brick during the construction phase of a wall, usually in expectation of the wall's completion at a later date.

maybe

Answer 2

Answer:

Racking is the term used for when buildings tilt as their structural components are forced out of plumb. This is most commonly caused by wind forces exerting horizontal pressure, but it can also be caused by seismic stress, thermal expansion or contraction, and so on.

Hope it helps you

Pls mark me brainliest