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Post by seanrua on Feb 1, 2014 11:19:18 GMT
Wrong section, perhaps, but I'm looking for thoughts on re-roofing an old shepherd's hut type thing ( more like a broken old train carriage).
A low pitch curved corrugated steel roof is the brief. Span from wallplate to plate is about 9 ft. Maximum rise to be no more than 8 to 10 inches.
The questions are which method/type is best/easiest/cheapest?
Surprisingly, quotes for steel ribs have come in cheaper than timber! However, a method using no ribs but just crowing the sheets over three long horizontal purlings is the cheapest. Is that idea good?
sean rua.
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Post by Firefox on Feb 1, 2014 11:37:59 GMT
I would go for sheets over long purlins if the purlins span is not too bad.
You can get the fall on the purlin levels. Or rafters the other way and make up the fall with firring pieces.
Is it 9ft square? I am surprised steel comes in cheaper than timber, you can get a 200x50 timber 3m long for about £10 or less new and may be able to source for less if you can find local demo site.
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Post by n brown on Feb 1, 2014 12:09:55 GMT
what length is this carriage ?most of the American ones I've seen have the corrugated running front to back. the sheets are so rigid that only a couple of purlins are needed. here's an English one we all deserve www.youtube.com/watch?v=OhfU3iQ2ns4..
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Post by robmac on Feb 1, 2014 12:14:48 GMT
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Post by Oldish Hippy on Feb 1, 2014 13:19:45 GMT
what length is this carriage ?most of the American ones I've seen have the corrugated running front to back. the sheets are so rigid that only a couple of purlins are needed. here's an English one we all deserve www.youtube.com/watch?v=OhfU3iQ2ns4.. 131101987802 this is ebay number of his unimog he got for sale as well
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Post by seanrua on Feb 1, 2014 18:13:09 GMT
Thanks for the replies. lads!
'Tis about half as long as that lovely one put up by n.brown.
The width is over wide; they have gone out over where the wheels used to be ( all robbed now).
I'll be sheeting across the top. I can get the whole curved top for between £160 and £200 depending on finish.
Firefox, I've had enough of felt and ply to last me a lifeime! If it doesn't blow off and leak, some bggr sets fire to it.
I'm pretty sure I'll dispense with all structural ribs/arches, but will have the curved boards front and back, with full length purlins to take the sheet fixings.
The metal guy must be desperate for work, I think, and the prefabbed timber arches by specialists were much to dear a price, imo.
sean rua.
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