Wet bricks in attic

[IsaacNewt]

Hi, I'm hoping for some advice from you wise people.

My 1930's house was extended about 40 years ago. The chimney has bare bricks for the top few feet, with render lower down (see first photo). The extended roof level cuts across the bare bricks, so that inside the attic space, I can see the rendered chimney stack with bare bricks at the top (second photo).

When it rains, the surface of porous bricks inside the attic becomes wet to the touch. There is no visible sign of damp in the living space of the house, and the attic is well ventilated with no signs of condensation.

I've had a quote to redo the perks and flaunching to the chimney and add a water proof sealant to the outside bricks. However with the cost of scaffolding, this isn't cheap and I'm just wondering if it's necessary. It seems to me that that part of the chimney would have got wet before the extension and the bricks are getting wet and drying as they always will have. I don't know if percolation through the bricks to inside the attic is a new problem and caused by deteriorated perks that needs fixing, so long as I keep the attic well ventilated.

If be very grateful for any advice.

 

[^woody^]

Best flashing ever!

If that roof has been built around the stack, then there is unlikely to be a DPC above the roof line so water will percolate down the brickwork.

 

[IsaacNewt]

Thank you Woody. So does that mean the internal bricks are likely to have been getting wet since the extension was built 40 yrs ago, so there is little point worrying about it now? Thanks again.