1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Charged extra for a flat roof

Discussion in 'Roofing and Guttering' started by Dylan T, 17 Dec 2020.

  1. Dylan T

    Dylan T

    Joined:
    11 Feb 2017
    Messages:
    101
    Thanks Received:
    1
    Country:
    United Kingdom
    Hi all - I've got an extension nearing it's end that's being built by a local builder. The original plans had a pitched roof, but after realising the architect had not accounted for the right pitch roof actually fitting below the upstairs window, we had no option than to go for a flat roof. At the time the builder said it was around the same price after I had asked if it would save me money, but I've just had the final bill where he says the flat roof is a lot more work and materials and has charged an extra £1000 for a 3x4m extension. He was going to get a roofer in to do the pitched roof but did the flat roof himself. From what I can read a flat roof is meant to be cheaper, but are there circumstances that this sounds fair that anyone can think of, or do people smell something fishy? And yup I should have got things more tightly agreed, this has been a huge learning curve for me.
    Thanks everyone!
     
  2. Sponsored Links
  3. johnny2007

    johnny2007

    Joined:
    11 Jan 2012
    Messages:
    3,011
    Thanks Received:
    466
    Location:
    London
    Country:
    United Kingdom
    I'm not a roofer, but I find it easier and cleaner to build a pitched roof than a flat roof.
    There's a lot more involved in a flat roof, whatever the final covering.
    Roofers here will give better advice.
     
  4. ^woody^

    ^woody^

    Joined:
    3 Sep 2006
    Messages:
    32,294
    Thanks Received:
    4,374
    Location:
    West Mids
    Country:
    United Kingdom
     
    • Like Like x 2
  5. ^woody^

    ^woody^

    Joined:
    3 Sep 2006
    Messages:
    32,294
    Thanks Received:
    4,374
    Location:
    West Mids
    Country:
    United Kingdom
    Yes a flat roof is cheaper for labour and materials
     
    • Like Like x 2
  6. datarebal

    datarebal

    Joined:
    1 May 2007
    Messages:
    3,167
    Thanks Received:
    619
    Location:
    Hampshire
    Country:
    United Kingdom
    He's having a good Christmas
     
    • Like Like x 1
  7. Notch7

    Notch7

    Joined:
    15 Sep 2017
    Messages:
    22,846
    Thanks Received:
    1,604
    Location:
    S. Uplands
    Country:
    United Kingdom
    What did he use?

    Felt, fibreglass, EPDM?

    It's hard to see a flat roof being dearer than pitched, unless you've got a lantern and fancy fascia detailing.
     
  8. Djangobanjo

    Djangobanjo

    Joined:
    17 May 2012
    Messages:
    6,487
    Thanks Received:
    387
    Country:
    United Kingdom
    get the architect to pay?
     
    • Thanks Thanks x 1
  9. Harry Bloomfield

    Harry Bloomfield

    Joined:
    30 Dec 2018
    Messages:
    5,697
    Thanks Received:
    820
    Country:
    United Kingdom
    A flat roof is by a long way the cheaper option, the builder is pulling the wool. He has maybe not made as much on the rest of the job, so is trying to make up the difference of the cheaper revision of the job.
     
  10. Sponsored Links
  11. Djangobanjo

    Djangobanjo

    Joined:
    17 May 2012
    Messages:
    6,487
    Thanks Received:
    387
    Country:
    United Kingdom
    Did you speak to the architect about this?
    Some builders like to ignore the drawings and do what works best for them - maybe the pitch did work if done properly?
    Or did the architect really forget that there were windows?
     
    • Like Like x 2
  12. Dylan T

    Dylan T

    Joined:
    11 Feb 2017
    Messages:
    101
    Thanks Received:
    1
    Country:
    United Kingdom
    Thanks for reply. It's EPDM, and yes it includes a flat roof window but the pitched roof was meant to have 2 velux windows. He also had to add ventilation around the window as the extension is in an L (two existing walls) and the building inspector was worried the air couldn't pass through properly as couldn't come out the other side. So admittedly there is more work there, but i was just of the understanding as the flat roof is cheaper it all evened out or near enough.
     
  13. Dylan T

    Dylan T

    Joined:
    11 Feb 2017
    Messages:
    101
    Thanks Received:
    1
    Country:
    United Kingdom
    Cheers, yeah the architect got this really wrong - there's an argument that the builder should have noticed but oh well. He just hadn't accounted for the upstairs windows for the roof pitch and wasn't even close - the pitch of the roof ended up being about 6 degrees!
     
  14. Djangobanjo

    Djangobanjo

    Joined:
    17 May 2012
    Messages:
    6,487
    Thanks Received:
    387
    Country:
    United Kingdom
    Crumbs. Well, the architect is to blame then, all very well saying the builder should have noticed, but so should have the draftsman!
    Bear in mind that a large flat roof might increase home insurance.
     
  15. diy_fun_uk

    diy_fun_uk

    Joined:
    16 Sep 2006
    Messages:
    1,046
    Thanks Received:
    132
    Location:
    Fife
    Country:
    United Kingdom
    I don't know how it works contractually, do you not have some come back with the architect? Their mistake/oversight has caused unintentional additional cost for you?
     
  16. catlad

    catlad

    Joined:
    29 Jul 2011
    Messages:
    4,607
    Thanks Received:
    680
    Location:
    Lancashire
    Country:
    United Kingdom
    Anyone with a little experiance should notice this straight away!
    Sounds like he is learning as he is going along at your expense.
     
  17. ^woody^

    ^woody^

    Joined:
    3 Sep 2006
    Messages:
    32,294
    Thanks Received:
    4,374
    Location:
    West Mids
    Country:
    United Kingdom
    It's a classic and all too common case of using a crap plan drawer (often cheap but not always so) who does some basic plans just to pass building/ planning regulations, gets paid then does one leaving it to the builder to sort things out.

    The homeowner don't know until he gets hit with the extra costs.

    It's getting less and less common to see plans that are actually for construction, not just passing building regulations.
     
    • Like Like x 1
Loading...

Share This Page