Mulberry View Posted August 6 Posted August 6 As some of you know, we're going through a bit of trouble with our Zinc roof. This rumbles on and no end is currently in sight, but I've had a bit of an awakening this week. Our roof is a 5° monopitch, there are 2 main and distinctly separate roof areas. Obviously you can't see much of it from the ground. You do, however, have a really good eye-level view over the single-storey roof (marked above as Roof Area 1) from the landing and from there, the oil canning is really obvious. I've come to realise that however good the installer is, there are some inherent features of standing seam roofing that cannot really be avoided. At least nobody will guarantee that these issues won't exist. It got me wondering... If an elegantly executed perfect metal roof just isn't possible due, in part, to the design of it then should I bring EPDM in as an option. In other words, is a well executed EPDM roof better for us than an imperfect Zinc one? This isn't a cop-out by the way, I'm just trying to be pragmatic. Our roof has so many defects and problems, at this point, I see no other option than stripping it fully. I have discussed this in this thread so don't really want to go over it here. Obviously we could have the absolute gold standard of EPDM for a much lower cost than Zinc and it makes me wonder if we really should consider it. Any thoughts?
JohnMo Posted August 6 Posted August 6 Our roofs are a similar size in EPDM. All seams welded and standing seams with roof lights on upstands. Sarnafil EPDM. Ours is on a 12 Deg slope.
Mulberry View Posted August 6 Author Posted August 6 10 minutes ago, JohnMo said: Our roofs are a similar size in EPDM. All seams welded and standing seams with roof lights on upstands. Sarnafil EPDM. Ours is on a 12 Deg slope. That looks nice. You pleased with it? I know nothing about it at this stage. I didn't realise standing seams are used with EPDM? One of the main issues is that we have 3 rooflights that have turned out to be tricky to detail in Zinc. Do you mind me asking what it cost you?
JohnMo Posted August 6 Posted August 6 End of 2020 it £14k including materials and installation for 194m² area. You please with it.
Mulberry View Posted August 6 Author Posted August 6 4 minutes ago, JohnMo said: End of 2020 it £14k including materials and installation for 194m² area. You please with it. That's pretty good. We have about 130m2 of roof area I think. So are the standing seams created with the product itself or in the build-up? Is yours a warm roof?
JohnMo Posted August 6 Posted August 6 24 minutes ago, Mulberry View said: standing seams created with the product itself or in the build-up? Is yours a warm roof? They are shaped strips welded to the EPDM. The EPDM is mechanical fixed to roof, and an overlap formed the lap joint is seam welded. The decor strips are then welded in place with spacing to cover all seams. 1
Nick Laslett Posted August 6 Posted August 6 (edited) @Mulberry View, I have a similar product to @JohnMo for my flat roof also from Sika, Sikaplan SGK-15. https://gbr.sika.com/en/construction/roofing/flat-roof-productsandsystems/single-ply-roofing.html Sika have so many different roof covering products that I find their website very difficult to navigate. We used these guys, they were friends with the scaffolder. http://jcservicesltd.com/services/cladding-installation Edited August 6 by Nick Laslett
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