Health and safety - Roof work

[kevindgas]

i would suggest not doing the work in the same weather conditions you took the picture!!!

 

[Mw Roofline]

Do single missing tiles need to be replaced or if left, will they tend to cause water ingress?

Hmm, tough one, that.

 

[Nige F]

Those little single buggers let in more water than you`d think. onto the sarking felt and sometimes inside the building .