2 hours ago, Iceverge said:

You can get mineral wool sandwich panels too. Which should preformed excellently

Didn’t know that.  Will search…

17 hours ago, Iceverge said:

You can get mineral wool sandwich panels too. Which should preformed excellently. 

OK.  I give in, (and I accept my googling technique clearly leaves something to be desired).  I can’t find a UK seller of mineral wool filled metal roof panels.  Anyone know of one?

This might help @G and J 🤷‍♂️

https://www.rockwool.com/uk/products-and-applications/roof-insulation/flat-roof-insulation/metal-roof-insulation/

Edited December 11, 20241 yr by joe90

thanks @Iceverge would this metal sheeting be better than epdm only or all the other options there too? (traditional 3 layer felt roof/ fibre cement slate tiles / profile 6 fibre sheets)

EDPM will require rafters, 2 layers of OSB, insulation, and a roof covering and lots of labour. 

 

Fiber cement slates won't work at such a shallow pitch. 

 

Felt won't be very durable and would need a backing board, rafters, insulation.

 

Profile 6 sheets will require rafters and purlines. Fiber cement sheeting used to be widely used on agri buildings near me but it's all been replaced by metal as it was cracking. 

 

Plain metal sheets won't span the two walls and so will require rafters etc. They'll drip in cold weather too. 

 

 

 

 

For this project insulated sheeting so prefectly fills the requirements that I would be hesitant to pursue any other choices. 

 

Edited December 12, 20241 yr by Iceverge

1. Strip the old roof get your wall levels correct with the 1:14 slope. 

 

2. Strap on a new timber wall plate. 

 

 

3. Screw on the Insulated panels. 

 

 

4. Bolt on flashings and gutterings 

 

 

 

5. Enjoy a drip free, leak free, economical, mould free, low maintainance, insulated roof until 2085. The underside is even presentable enough to make a finished ceiling inside IMO. 

 

 

 

 

Edited December 12, 20241 yr by Iceverge

16 hours ago, G and J said:

OK.  I give in, (and I accept my googling technique clearly leaves something to be desired).  I can’t find a UK seller of mineral wool filled metal roof panels.  Anyone know of one?

 

https://www.panelsell.co.uk/acoustic-fire-rated-rockwool-panels

 

Edited December 12, 20241 yr by Iceverge