Corrugated roof material - recommendations?

[Great_scot_selfbuild]

Hi,

 

We’re looking to have a black corrugated roof (example photo attached) and would appreciate advice on:

 

Recommended products & suppliers

What is the layup? It will be going on top of insulated modular timber panels that have been manufactured off-site and are blown-filled with warmcel insulation once installed on site. Interested in what the various layers will be on top of this.

 

TIA

[Redbeard]

Assume min 60 yr life required, so not corrugated bitumen board, in my experience (although poorly-supported bitumen boards 'go' a lot quicker). I took off some (?pre WW2?) corrugated in about 2015 and yes, it was 'chewy' at the edges, but (a) so much thicker than modern, (b) still with most of its galvanising on and (c) solid as a rock at all but the edges. 

 

Self-coloured, of course. Epoxy if you can.

 

Layers I could guess, but I'd be guessing, so I will leave that to others. Battens and counter-battens will be involved, I suspect.

[BadgerBodger]

Tried searching for sinusoidal cladding? There are plenty of options. 

[Tom]

We've got a black sinusoidal roof, bought the panels from here: https://www.panelsandprofiles.co.uk/  they might be able to advise on build up too, also some info on the Cladco website (though they seemed the most expensive IIRC). You'll also need to get flashings (eg for the ridge) and foam fillers

[Bramco]

@Great_scot_selfbuild

 

We have black corrugated roofs and walls to the 2 storey section of the house - images here -> https://lhc.net/projects/ashcroft-creating-a-low-energy-family-home/

 

Our son was the architect and specced the tin. From memory it has at least a 45 year guarantee - I think it was Firth steels. We used a company in Leominster to do the actual supply - Thomas Panels and Profiles.  They suggested a contractor to do the actual build but we sacked him off half way through and our main contractor finished things off. fastenings were EJOT.

 

I can get more detail if you need it.

We found it hard to find examples to go and see in real life - there's probably more around now. You're a long way away in Surrey but you're always welcome if you are up our way to have a look at ours.

[Great_scot_selfbuild]

On 29/04/2025 at 14:43, Bramco said:

@Great_scot_selfbuild

 

We have black corrugated roofs and walls to the 2 storey section of the house - images here -> https://lhc.net/projects/ashcroft-creating-a-low-energy-family-home/

 

Our son was the architect and specced the tin. From memory it has at least a 45 year guarantee - I think it was Firth steels. We used a company in Leominster to do the actual supply - Thomas Panels and Profiles.  They suggested a contractor to do the actual build but we sacked him off half way through and our main contractor finished things off. fastenings were EJOT.

 

I can get more detail if you need it.

We found it hard to find examples to go and see in real life - there's probably more around now. You're a long way away in Surrey but you're always welcome if you are up our way to have a look at ours.

@Bramco Thanks for the response and link - would certainly like more details please. In particular, I'd like to know what goes underneath the corrugated material (any photo of the build-up?).

[Great_scot_selfbuild]

On 29/04/2025 at 14:18, Tom said:

We've got a black sinusoidal roof, bought the panels from here: https://www.panelsandprofiles.co.uk/  they might be able to advise on build up too, also some info on the Cladco website (though they seemed the most expensive IIRC). You'll also need to get flashings (eg for the ridge) and foam fillers

@Tom Thanks - Cladco is the one I have been looking at, but suspect that as it appeared so readily (high up on searches) that I should be able to find a better value supplier. That said, the site does appear to be quite helpful and informative. I'm just trying to ensure we find the best supplier and don't overlook any build-up layer, or go OTT on the spec if it's not needed.

[Bramco]

1 hour ago, Great_scot_selfbuild said:

n particular, I'd like to know what goes underneath the corrugated material (any photo of the build-up?).

@Great_scot_selfbuild here's a couple of photos - not great but they show the build up. 

 

 

[Bramco]

2 hours ago, Great_scot_selfbuild said:

would certainly like more details please

 

Here's the spec for the steel...

Roofing&Cladding_N14-3Sinus.pdf CoatingsPages_GreencoatCrownBT.pdf Data_sheet__GreenCoat_Pro_BT_2021-03-22.pdf

[Bramco]

@Great_scot_selfbuild

 

Not sure if you were planning on cladding, or the roof as well - if you are doing the roof and also rooflights, then look at the roofmaker rooflights. They do triple glazed etc and are motorized to lift up and down.

 

For us, the great thing about the roofmaker roofights was that they were just a flat glass surface outside - they are also very neat inside.  We've always hated the bumps at the top of velux and similar rooflights.  

 

You can see the 'look' on the second image above.

[Great_scot_selfbuild]

10 hours ago, Bramco said:

@Great_scot_selfbuild

 

Not sure if you were planning on cladding, or the roof as well - if you are doing the roof and also rooflights, then look at the roofmaker rooflights. They do triple glazed etc and are motorized to lift up and down.

 

For us, the great thing about the roofmaker roofights was that they were just a flat glass surface outside - they are also very neat inside.  We've always hated the bumps at the top of velux and similar rooflights.  

 

You can see the 'look' on the second image above.

@Bramco were looking at corrugated just for the roof. We have yet to source our roof lights for the house - was going to be looking at velux but interested in other alternatives. Would love some more details and photos, especially what they’re like inside and ease of use etc. have you got internal blinds? Automated options? (At the moment we’re thinking about putting the wiring in but can save cost on not implementing until later if we need to make cost savings). Indicative image of our design attached. 

[Bramco]

@Great_scot_selfbuild

 

See the attached photo from inside. The Roofmaker roof lights have an internal lip that the plasterboard fits into, so it's a very clean look.

 

We haven't got any blinds. The roof lights come with remotes but can also be hard wired to momentary switches for up and down. I think they've changed the controllers now. Ours are hefty black boxes, I think the new ones are integrated into their switches.

 

They also do rain sensors. We only fitted one and ganged it to all of the roof lights. We also have one momentary switch in the hall which we can use to put all the roof lights down. Again, this is ganged to all of them.

[Tom]

View of the inside of one of ours. This one has a blind that operates with a remote control.

 

[Great_scot_selfbuild]

@Bramco, @Tom, thank you. I filled in their quote form but they’ve come out far higher than the velux options I’m looking at (the roof light windows I’m needing are all within reach and aren’t needing the same sort of remote access control as yours). It turns out I had actually looked at this brand when we were looking for the fixed roof lights for our garage also.

[BadgerBodger]

Have you tried keylite? They’ve come up way cheaper for me.