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Holes in fibre cement slates - do they cause staining??

Swift66 · 2009-06-26 10:04:47

Hello, Can you tell me if holes drilled in fibre cement slates, for copper nails/crampions will cause staining via the rain washing cement powder down the roof. In some slates I'm using I've had to drill holes which end up being unused , will these holes cause more cement staining? Cheers

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26-06-2009 11:04am

#1

Swift66

Registered Users Posts: 139 ✭✭

Join Date: January 2009

Posts: 36

Hello,

Can you tell me if holes drilled in fibre cement slates, for copper nails/crampions will cause staining via the rain washing cement powder down the roof.

In some slates I'm using I've had to drill holes which end up being unused , will these holes cause more cement staining?

Cheers

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#2 26-06-2009 9:57pm
porte

Registered Users Posts: 207 ✭✭

Join Date: July 2007

Posts: 156

I would think that this will cause no harm the only hole that will be exposed to the elements would be the crampion hole if you find a good clear sealer and maybe treat each hole as you go i dont think you will have any problems
a bit tedious but if its your own roof its worth getting right.

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