Metal Roof profile/Material

[Stable Dave]

Hi there

 

The roof on large stable two storey outbuilding is spec'd to be metal profiled sheet. I can decide the profile and exact type of sheeting (anthracite colour) and wanted some advice. The roof area is 85m2 (17m long x 5m deep) and is monopitch at 15 degrees. There are 5 velux's going in and two flues for woodburning stoves. I've half a hope that I might be able to put solar panels up there at a later stage. 

 

The roof is going over rafter/OSB/110mm Insulation.

 

Currently looking at standard corrugated wave form from Cladco partly for ease of installation and cost.  Any alternatives worth considering with flashing for Velux in mind (not all metal profiles seem to work with Velux flashings) and the potential of adding solar panels at a later date?

 

I'm also aware that presumably the less holes you put in a metal roof the better - but may not be able to avoid this??

 

Cheers

 

Dave

[Russell griffiths]

That’s not a huge area, could  you get custom folded so the profile works with the window spacing. ?‍♂️?‍♂️

 

There’s loads of new places by me that are having zinc roofs and they are folding it on site and producing custom sheet sizes to go around the windows. 

[Stable Dave]

Thanks for that. Had a bonus day today randomly came across a new build in Sheffield where they're using proseam by Bradclad. Really liked the look of it got to chat with the roofing contractor on site who is using lots of it, says it works well with Velux etc. They also have a solar option with some very cool flexible panels that are laminated on to the roof panels. Anyone any experience/costings with either of these products?

[SimonD]

I've just installed a traditional standing seam roof on my build, but because I have 2 curved roof sections, I had to form, cut and fold the entire roof myself on site. The products like Bradclad are simpler. They need to be fully supported and use the hidden clip systems so you don't run the same risks as the typical profiled sheets you see on barns that have the exposed fasteners and rely on rubber seals on the exterior etc. These companies will provide you with pre-formed pans for the width and length of your roof and the will also provide all the flashings pre-folded too. The flashings, clips and brackets make up for a surprising amount of the materials.

 

There's a couple of other companies out there that provide the preformed 'kit' type standing seam roof. Tata Steel's Colourcoat Urban is one ( I was going to use them but backed off when they massively hiked the price for me and trying to have an adult discussion with them didn't work). Metal Solutions, UK distributor for the SSAB Greencoat PLX Pro BT provide them in all manner of finishes from Zinc, to coated steel to coated aluminium. If you wanted to go down the more hands on traditional forming, I'd highly recommend talking to the Metal Roof Company (where I bought all my supplies from in the end) who will also get you in touch with a local metal roof specialist.

 

The last prices I got for the pre-formed versions of this kind of roof were back in March:

 

Greencoat PLX coated steel at 530mm centres was a little over £12 per linear meter ex VAT, but then you have to add costs for flashings which vary according to girth as they're cut from a 600mm wide steel coil. On top of this you'll also need sliding and fixed clips, installed at about 220mm centres around the verges, ridges and eaves and about 380mm centres across the rest of the roof (but this does depend of wind uplift forces for your roof).

 

This obviously doesn't include installation costs either.

 

Specifying this stuff isn't straight forwards!

 

They work well with Velux and any other upstands across the roof.

 

I think these roofs are gorgeous and worth the effort mind you.

 

Hope this helps and do let me know if you'd like more details.

Edited October 17, 2020 by SimonD