Spanish Slate

[Jacet]

Hi there! New to the forum and have the following query.



Do Grade B Samaca slates curl up like a piece of dry bread the longer they are left on the roof as they seem to be getting worse week by week.

 

[catlad]

slate curling is new to me how long have they been on ?

 

[Jacet]

4 weeks in total and looking a right mess. Can't wait till the pyrite starts oxidizing.