We live in a traditional Victorian house in the North-East of England, i.e. fairly damp and wet. The windows have sandstone lintels. However due to damp and age the paint eventually bubbles (see picture).
I would like to repaint the house exterior.
What is the best way of treating and preventing future paint bubbles on the sandstone?
A couple of dozen bricks have also been painted. What's the best way of stripping the paint off these bricks to expose the original bricks.