Closing gable cavity

[_Tiny_]

What are the options for closing the cavity on a gable end wall? The drawings I have say 6mm masterboard. I need to bed the verge tiles, can it double as the undercloak?

Cheers.

 

[23vc]

Why do you have to close it? But yeah I’d assume undercloak cement board type thing
When I’ve done it I’ve used the undercloak on the outer leaf only which I believe is the standard approach, don’t know how wide you can buy it.

 

[bobasd]

as above, there's no need to close the cavity but if you must you can use 300mm wide fibre cement board - typically though 150mm f/c board is used.
the felt crosses the cavity and the battens but not the f/c board.

what you suggest OP might result in the 6mm masterboard cocking up the verge tiles or slate.

 

[catlad]

It used to be standard procedure to cock the tiles at the verge to stop the water coming of the side of the roof.

 

[bobasd]

i know but i think the practice sometimes introduced other problems

 

[^woody^]

What are the options for closing the cavity on a gable end wall?

The roofing membrane.

 

[Leofric]

You can see various roof tiling details e.g. verge , ridge , eaves etc, under technical details on the websites of tile companies such as Redland , Marley , Sandtoft etc.