My house is a redrow 2 story detached built in 1998. I've owned it just over a year. Yesterday while up in the loft i noticed a 7ft long crack extending from just below the roof apex all the way down the internal bock wall to the loft floor. The crack starts from a motar joint at the top and goes roughly vertical, splittiing several blocks on its way down. At its widest, near the top i estimate its roughly 10mm wide. I can get my finger in it.
The room below the crack is the en suite bathroom. Here there is evidence of a small horzonal crack in the plaster to the top left of the window frame (where you would expect the lintle to be). There is no sign of any cracking on the external brick wall.
For the time being, i've glued a ruler across the crack in the loft & marked the wall so i can see if it gets any bigger. Do you think this is settlement, subsidence, or just shrinkage & nothing to worry about?
The room below the crack is the en suite bathroom. Here there is evidence of a small horzonal crack in the plaster to the top left of the window frame (where you would expect the lintle to be). There is no sign of any cracking on the external brick wall.
For the time being, i've glued a ruler across the crack in the loft & marked the wall so i can see if it gets any bigger. Do you think this is settlement, subsidence, or just shrinkage & nothing to worry about?