Every step has decrease the amount of water but i can t get that last bit.
Water running down chimney breast in attic.
3 exposed chimney brickwork gets damp and white lime deposits form on.
If you have a broken gutter in heavy downpours water can run down the face of a wall and seep into any splits or cracks in mortar presenting as damp in your chimney breast.
Building faults that can cause chimney damp damp patches on the chimney breast brown or yellow marks on the walls and ceilings surrounding the chimney often point to damage caused by a water leak or building faults such as inadequate guttering missing roof tiles poor flashing details and absorbent masonry.
Well the salts accumulated on the roof timbers are there due to years of tiny water ingress and condensation on the underside of the roof slates.
This portion of the chimney prevents water from entering the flue but also prevents wear and tear on the masonry.
Broken or blocked gutters can cause rainwater to filter and collect in unwanted areas causing water ingress and damp in your chimney.
If the stringer is un level water can travel a ways and even wind up at the chimney.
1 water runs down the flue.
The slanted crown should provide a downward slope that will allow for water runoff.
This can manifest in a number of ways such as.
Is there any way water could still be getting down the flue due to gaps on cap.
But efflorescence might also mean that water is running inside of the chimney flue or chimney structure.
2 water runs down the brickwork inside the house or attic.
Repeated wetting and evaporation has concentrated those seen here.
Further diagnostic inspection is needed.
Efflorescence on a chimney might be just cosmetic as wind blown rain wets the chimney sides and leaches out mineral salts which remain white on the masonry surface of the chimney.
This runs down and wets the timber leaving minerals they dissolved along the way.
I still have a small bit a water coming down during occasional heavy wind and driving rain.
More on this later.
