Stupidly we allowed the design to have a zinc roof

[CalvinHobbes]

The brief to the architect was to keep everything standard and nothing expensive. Somehow a great big zinc roof that extends over the sides was put in, I had no idea it was so specialist and eye wateringly expensive (double price of tiled). We are through planning and QS and a contractor both suggested we get it changed to a tiled roof. *Bangs head

Presumably that means going back to planning and the structural engineer, architect etc etc? 

Gone someone say something good.

[Thorfun]

cor. sounds like your Architect made a big blunder there if they thought Zinc was standard and not expensive! we only had Zinc guttering and downpipes specified and knew that was going to be expensive but a whole darn roof!

 

I wonder if you could get away with a material amendment rather than another full planning application?

 

good luck! at least you're value engineering now and not after you've started building.

[Kelvin]

Architects love zinc. They must be trading in it. 

 

I started with zinc but we are now fitting a Catnic Urban metal standing seam roof. I got a quote for Greencoat but it was much dearer than Catnic. 
 

Can you not getting a change of material? Most of our warrant says blah blah material or equivalent. 

Edited December 13, 2022 by Kelvin

[Seren161]

Should get in with a material amendment..there probably is some relatively minor expense if it is a major material amendment like this I think but otherwise should be straightforward 

[nod]

Architects like spending other peoples money 

and often not practical to build 
 

[Bonner]

9 hours ago, Kelvin said:

started with zinc but we are now fitting a Catnic Urban metal standing seam roof

 

This makes most sense, should be a minor amendment. Looks similar and no architectural or structural changes necessary.

[Iceverge]

Can you replace with a PVC coated steel roof? 

 

https://www.gusclad.ie/products/standing-seam-profile/

[Happy Valley]

We went down the Greencoat route which was a lot cheaper than zinc. Costs more than a traditional roof but has a 50 year guarantee which should at last me!

 

 

[Russell griffiths]

 Another one here with the green coat roof. 

[HughF]

I've used the blachotrapez system that I bought from @Patrick of Pagurek UK - an excellent system, really nice to work with.

[saveasteading]

I agree with Iceverge.

I have done many a roof in sensitive locations, using steel, either grey coated, or aluzinc, and the planners have been happy that it looked like traditional zinc.

The magic words were 'wide pan, low profile'. I.e. Not crinkly.

I never used standing seam either because of the cost, and being difficult at joints and junctions. The screws are visible but a minor thing.

Also, if ever damaged, standing seam requires specialist repair, wich simply won't happen, and it gets patched up.

 

Does your design brief cover economical design? That would concentrate your architect's mind on getting this changed. Beware of him being prescious of the zinc, and not being very convincing with the plannners....I have had that and taken the discussion on myself.

Don't tell the planner it is about cost though. Sustainability....less material, easier maintenance and repair, longer life...whatever.

[Patrick]

2 hours ago, HughF said:

I've used the blachotrapez system that I bought from @Patrick of Pagurek UK - an excellent system, really nice to work with.

Thanks. Always appreciated to hear this.

[Tosh]

We changed ours from zinc to plx. I challenge anyone to tell the difference unless its right in your face. If the colour and profile remain the same then who would know the difference, a planner? However if you were keen to keep them informed then I would think a non-material ammendment would be your best option.