Will damp penetrate block garden "Trough" All manner of questions and solutions to problems and issues surrounding the subject of brickwork, blockwork and stonework

[LAB]

Hi All
I have built a 4 mtr long, 1mtr high garden "Trough"/ raised bed!, with 2.5 cm gap between two layers of GP1 blocks,unfortunately before seeking advice the channel has now been filled with top soil,the wall has had a scratch and a top coat with stipple effect ready for masonry paint, the problem is will damp penetrate from inside and "damage" the paint, do I need to coat the wall with sealant before painting?
I do not mind re-painting annually, help please.

Sorry,did not know what dept.to post this topic.

[welsh brickie]

I don't think there is any point as its likely to flake anyway, but try coating it in a pva solution it may help

[LAB]

Welsh brickie
Thanks again for your reply and help, is it likely to flake becouse I did not "tank" the inside or is it a normal accurance to the elements?

[welsh brickie]

its because you didn't line it.