is it possible to fit a fibre shed roof panel upside down!?

[Sharpy]

Recommendation is 2 fixings per sheet per purlin.

 

[grainboy]

10 ft sheet on 3 purlins, only 1 fixing in the middle one,

 

[Sharpy]

10 ft sheet on 3 purlins, only 1 fixing in the middle one,

Which manufacturer recommends that?

 

[RWG Contracts]

Which manufacturer recommends that?

Not Eternit

 

[Sharpy]

Not Eternit

View attachment 1137638

That's what cembrit recommend as well, plenty folk skimp though.

 

[grainboy]

So picture 1 is wrong then, fixing too close,

picture 2, ?
middle purlin 1 fixing. ?

 

[RWG Contracts]

So picture 1 is wrong then, fixing too close, View attachment 1137653picture 2, ?
middle purlin 1 fixing. ? View attachment 1137656

picture 1 is wrong to the book but that’s how most people fix them, and Eternit stand by warranty fixed like that.
Picture 2 needs some middle purlin fixings

 

[farmgineer]

If the material should be a certain way up, then it's possibly gone through the rolling mill the wrong way up. The sheet installer has put them on correctly to the shape of them, but the sheets are made the wrong way up ... I'm not sure I'm making sense but hopefully you get the idea?

 

[Bald n Grumpy]

If the material should be a certain way up, then it's possibly gone through the rolling mill the wrong way up. The sheet installer has put them on correctly to the shape of them, but the sheets are made the wrong way up ... I'm not sure I'm making sense but hopefully you get the idea?

@Sharpy mentioned putting sheets upside down and spacing for ventilation, are these sheets made the other way up or are they all the same?

 

[Sharpy]

@Sharpy mentioned putting sheets upside down and spacing for ventilation, are these sheets made the other way up or are they all the same?

I can remember being told special sheets were available, but have never seen any.

 

[Full of bull(s)]

Also you can fit them upside-down if you are making a spaced roof for ventilation.

The sheets for doing this are narrower, half a corrugation less either side so you don’t fit them upside down so it wouldn’t fit

 

[Sharpy]

The sheets for doing this are narrower, half a corrugation less either side so you don’t fit them upside down so it wouldn’t fit

Thank you, every day a school day.

 

[Nearly]

Recommendation is 2 fixings per sheet per purlin.

Brought up to have at least 3 at 750ft above sea level.
Rooflights look like they've been machine gunned!

 

[Sharpy]

Brought up to have at least 3 at 750ft above sea level.
Rooflights look like they've been machine gunned!

2 plenty here, 3 at gutter, every ridge on a roof light or they don't last long.

 

[Doing it for the kids]

thanks everyone. what is surprising is there is no clear answer with some votes saying yes and some no.

we cant work out why we have wet spots in the grainstore and this was one theory. granted running out of them now though

 

[RWG Contracts]

thanks everyone. what is surprising is there is no clear answer with some votes saying yes and some no.

we cant work out why we have wet spots in the grainstore and this was one theory. granted running out of them now though

damp patches or wet patches?

 

[RWG Contracts]

https://media.eternit.co.uk/pd45373/original/-1470136139/profiled-sheeting-damp-patches.pdf

thanks everyone. what is surprising is there is no clear answer with some votes saying yes and some no.

we cant work out why we have wet spots in the grainstore and this was one theory. granted running out of them now though

 

[Derky]

Have they used lap tape ??? a must on grain stores. If they have did they push it in the corrugations or drop the sheet on top? If the latter it splits the mastic in the valley. We use cembrit and I have to admit we are starting to go away from them due to them being roughly handled in the factory and warehouses. Never had damp issues though.

 

[grainboy]

Stand by what I stated,
10 ft big six, middle purlin 1 fixing