The foundation has failed. There were no weep holes for water to drain. Water has entered and frozen which caused breaks between the bricks.
Cracks usually indicate foundation problems. When the ground swells or contracts, your foundation will move up or down. If you are on blocks, you have a block that is settling.
It because of differential settlement
Settlement cracks and cracks from ground shifting are not covered.
faults
You can "Magnaflux" the block assuming the block is cast iron or steel and the block is stripped down and cleaned for rebuilding.
maybe in the instalations, in my house they came from little cracks in walls so you should check out for cracks in walls...
cover up the cracks in your house
These have found a "foothold" in small cracks.
yes! i install emt,grc,imc and PVC in block walls everyday.
Depending on your homes construction material,sealant may be applied to the exterior ti seal walls.
it is formed when a large block of land is pushed upwards along a crack or between two cracks in the crust
Build walls around it
I live in a sandstone-rich area of Scotland and my house in fact is built of sandstone, as are several walls near it. There is also a sandstone quarry outside the town. It is basically a 'stone' (if you could call it that) which is made of sand, crushed together thousands of years ago. If you scrape it, sand comes off. If I wanted i could scrape my way into my house with a spoon. Throw a sandstone block on the ground and it will split into several pieces easily. Cracks do not usually stay in a sandstone block due to its nature - a crack will normally just split the block in 2. So to answer your question, sandstone CAN have cracks, but not big ones or it will just shatter into bits. Basically, no.
Block work is used to construct walls in Buildings of residential and commercial