Needing to paint exterior walls of my cottage circa C17th
The walls are made of Sarsen Stone, with some bricks in places and is rendered and painted white ...... but on the gable end which is exposed to more of the elements than the rest, pink brick dust is leaching through the ? render which has then been painted white, with black below.
Anyway I have had 3 quotes -
- one wants to jetwash the wall, make good and then cover it with something like PVA before repainting
- the second wants to wire brush the wall, make good and cover with a 'stabilising solution' and then repaint with white masonry paint and some sort of black bitumen product
- the third one is saying he wouldn't put anything on after making good, as it is an old property and the wall would be unable to breathe if it were to be 'sealed'
I can see every point of view, BUT I am concerned about doing the 'right thing' as I will never be able to do this again in my lifetime (I will be inheriting some money this time) so really want it done properly
Ideas and thoughts please?