Pitched warm roof...

[eddieed]

Hi all,

Due to various miss communications I now find myself needing to externally insulate and counterbatten a pitched warm roof (it was meant to be a cold roof but its a long story).

Therefore we have 50mm rigid insulation and 50mm x 38mm counterbattens.

The counter battens obviously need fixing through the insulation to the roof timbers. What fixings do I need to use. Do I have to use these twisted type nails or are normal nails ok assuming I need at least 140mm length and at what centres. I will check with the BCO but need to order stuff so I can get started.

Thanks in advance

 

[datarebal]

50 mm alone isn't up to speed.. have you more somewhere else?

 

[eddieed]

Yes 140mm inbetween the pitched room timbers or 400mm in the ceiling haven’t decided yet. We will do that afterwards!

 

[noseall]

Yes 140mm inbetween the pitched room timbers or 400mm in the ceiling

Eh? If you have a loft ceiling, why the warm roof faff?

 

[eddieed]

As I say it’s a Long story and quite a bit of the roof is vaulted anyway!