Green coat galvanized steel

[gavztheouch]

I have a metal roof made of green coat steel from sweden apparently it should last 50 years. Is this also a good material to make window sills from. I can get it up to 0.9mm I think. 

[Gus Potter]

49 minutes ago, gavztheouch said:

I have a metal roof made of green coat steel from sweden apparently it should last 50 years. Is this also a good material to make window sills from. I can get it up to 0.9mm I think. 

Ha ha..this is a hot topic on my books at the moment! story for another day. 

 

The secret is in the detailing. 

 

Let's go back to traditional leadwork. In any place where you get regular dripping of water then we would go for code 5 lead as a minimum . Your first port of call is to look at the exposure condition, is it sheltered or near the coast with salt in the air. 

 

Next is to refer to say Kingspan cladding techincal data for steel coated panels, similar to Greencoat... your cill is just the same. 

 

To give you a direct answer in ideal conditions say as a roofing panel  away from the sea.. 50 years.. but as a cill maybe not unless it is under shetlered eaves. But will your window last that long? 

[saveasteading]

7 hours ago, gavztheouch said:

green coat steel

I'd never heard of this despite building 300+ steel buildings, so thanks fof widening my awareness.

 

The website is vague about why it is supposedly so good , and even what the coating is made of. Can one if you tell me briefly?

 

8 hours ago, gavztheouch said:

 Is this also a good material to make window sills from?

That's for a window sills manufacturer to decide isn't it? It might depend on the folds and how much the coating stretches. 

[Russell griffiths]

No, get them folded in aluminium and powder coated in the colour of your choice. 

[Tosh]

I have it as well https://www.ssab.com/en-gb/brands-and-products/greencoat/products/plx/pural-bt

 

Can't see any technical reason why you couldn't use it to make cills, we used it for that but only because it was an integral part of the metal facade cladding. However we used aluminium cills everywhere else, supplied by the window supplier, was just easier to procure and cheaper. Metalsolutions are the Greencoat UK distribtor and looks like they will fabricate to order as well if you want to go down that route.

[gavztheouch]

30 minutes ago, Tosh said:

I have it as well https://www.ssab.com/en-gb/brands-and-products/greencoat/products/plx/pural-bt

 

Can't see any technical reason why you couldn't use it to make cills, we used it for that but only because it was an integral part of the metal facade cladding. However we used aluminium cills everywhere else, supplied by the window supplier, was just easier to procure and cheaper. Metalsolutions are the Greencoat UK distribtor and looks like they will fabricate to order as well if you want to go down that route.

Thanks Tosh, yes I’ve been in contact with metal solutions they are very helpful. The Glasgow depot is close to me. I liked the idea of cutting and folding my own cills. A future project of mine is to learn how to work the metal for standing seam roofs and cladding.

Edited Friday at 20:17 by gavztheouch

[Russell griffiths]

17 hours ago, gavztheouch said:

Thanks Tosh, yes I’ve been in contact with metal solutions they are very helpful. The Glasgow depot is close to me. I liked the idea of cutting and folding my own cills. A future project of mine is to learn how to work the metal for standing seam roofs and cladding.

My cills have welded upstands on the ends to prevent water running from the sides and into the fabric of the building, you can’t weld the green coat without damage to the coating. 

[Tosh]

6 hours ago, Russell griffiths said:

My cills have welded upstands on the ends to prevent water running from the sides and into the fabric of the building, you can’t weld the green coat without damage to the coating. 

Our formed cills were all folded but they did have to solder a few joints around our plinth flashing. They just took the coating off back to the steel, to the width of the solder and then painted afterwards with colour match spray.