Green Shed

[RichA]

My shed has started to turn Green! Is it algae? What is the best/easiest solution?

Thanks,
Rich

 

[JohnD]

cure the excess damp.

does it have gutters and downpipes? (not shown in photos)

cut the grass away from it.

 

[RichA]

The shed doesn't have gutters, but it does have 20cm+ overhang on all 4 sides?

Could the damp be caused by exhalation/perspiration from working out on a stationary bike?

 

[Doggit]

It's normally the sort of thing you find on the north side of trees, due to it being colder. Check the orientation, and then make sure you've got a free flow of air around it.

 

[JohnD]

If you have no gutters, it will be splashing up from the ground, or being blown by the wind onto the walls. Long grass may prevent it drying out quickly. Gutters and a bare strip by the walls will help.

 

[ntb]

Lichen growning from rain splashing back up from the ground. Bleach will kill it off but it will come back over time.