I have a dry verge on a gable end which is rendered white. Where the dry verges join to each other it is causing a streak on the render (see attached picture). The odd thing is that I have 3 gable ends and it only seems to happen on one of the gables. From what I know the dry verges is just a simple click type installation and its not a complicated install so I don't think there is much to get wrong or change from an installation perspective?
Anyone know why the dry verges would streak in some places but not others? Is there anything that can be tweaked on changed about the installation of the verges to prevent this?
There is some moss/algae on the roof which I suspect is where the green colour is coming from in the streaks. Is there any merit in cleaning the roof and removing the moss/algae? I know its not a long term solution and isn't going to solve the underlying problem of the dry verge joints streaking.
Any help would be appreciated.
Anyone know why the dry verges would streak in some places but not others? Is there anything that can be tweaked on changed about the installation of the verges to prevent this?
There is some moss/algae on the roof which I suspect is where the green colour is coming from in the streaks. Is there any merit in cleaning the roof and removing the moss/algae? I know its not a long term solution and isn't going to solve the underlying problem of the dry verge joints streaking.
Any help would be appreciated.