It depends on whether the nails are in the right position. On a battened roof the nail holes are determined by the battens. On a

The HookPull helps position slates when using our HallHook product. Once your slate is in place, gently pull the HookPull until the HallHook hooks the

One pack includes 10 HallHooks and 1 HallHook.

For general repair After solar panel bracket mounting After roof light/window installation After installing slate vents

We have an installation video available here.