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jaybmiller 
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Joined: 12 Sep 2009
Location: Greensville,Ont
Points: 25247
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 Topic: steel roofing question
Posted: 3 hours 17 minutes ago at 6:46am |
Curious...
Is it 'normal practice' to install steel roofing DIRECTLY on to shingled roofs ?
Amish(?) crew doing my old shop, left the shingles on, strapped the north side, installed tin, south side NO strapping, went direct onto the shingles.
FWIW Job costing $12K, I'm thinking $4500 in tin and 1x4x16 boards, 3 day+-.
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 35666
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Posted: 3 hours 1 minutes ago at 7:02am |
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Not ever seen Tin installed on Nailers over Shingles. EVER. Most here will strip a roof add a Roofing Sheathing Cover(Ours has Titanium paper) then Purlins and finally Tin. On a strip off Complete Rebuild to afford for better Snow Load, ours has 3/4" T&G Sheathing then the paper and Tin directly screwed to Sheathing.
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jaybmiller
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Joined: 12 Sep 2009
Location: Greensville,Ont
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Posted: 2 hours 30 minutes ago at 7:33am |
the roof has ,from top layer to bottom layer...
new steel tin 3 tab shingles(south side 10 years old,on top of say 30 year old , north 30 year old) 5/8" t+g plywood original aluminum roofing on 3x4 purlins(girts ?), trusses 12' on center .
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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Dave in PA
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Joined: 13 Sep 2009
Location: Mars/Wexford PA
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Posted: 2 hours 25 minutes ago at 7:38am |
My thoughts on this. The shingles are bad, get them gone, remove! As for tin directly on the shingles, you can answer this yourself. Is it a good idea, to lay a painted metal sheet, screwed down, when it is going to expand and contract due to the change in temp. directly on a coarse grit shingle acting exactly like a piece of sandpaper?? Not in my opinion.
dave
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DMiller
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Location: Hermann, Mo
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Posted: 1 hour 28 minutes ago at 8:35am |
Shingles needed Offed. Plain and Simple. Girts Wrap a Building Purlins top a Roof. Per a Builder here.
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DanWi
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Joined: 18 Sep 2009
Location: wttn
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Posted: 1 hour 3 minutes ago at 9:00am |
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Strip it with 2x4 over shingles. They will have a little control over getting those 2x4 nailed or screwed solid. Then the screws in the tin will have less chance of ever coming loose. Taking the old shingles off probably doubles the price of the job.
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jaybmiller
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Location: Greensville,Ont
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Posted: 23 minutes ago at 9:40am |
Nice to see we ALL think alike !
'contractor' is cheap....
I'd have got rid of all the shingles( easy 4/12 pitch),strapped, tinned but sadly no longer MY shop.
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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