wash of bleach on exterior wall

[baggielad]

I'm painting (white) the exterior pebble dashed walls of our house. I've washed them and sprayed them with a dilute bleach solution, but is there any need to rinse the walls down again or can I just get on and paint them?

Thanks for any responses.

 

[JohnD]

what was the bleach for?

 

[baggielad]

what was the bleach for?

Just to kill off any algae and/or moss growing on the wall. I had read somewhere that this was a good idea!! I don't see why there would be a need to wash it off as surely it cant harm the paint can it?

 

[JohnD]

you need to brush off the dead moss and algae now.

 

[baggielad]

you need to brush off the dead moss and algae now.

Thanks for the replies. There was very little on the wall and I removed it when I was washing it with stiff brush. I then just sprayed a dilute bleach solution which may have been overkill but I thought it can only help. I would like to start painting as soon as possible, but I'm not sure whether the wall should be rinsed down before painting.

 

[JohnD]

if it already painted, you can hose it down, but if it is bare brick or stone, the water will just soak in, carrying any residue with it.