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Borrego
Member
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# Posted: 30 Sep 2015 09:52pm
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I'm building a 24 x 24 screen porch and intend to have an observation deck on top. So my general contractor head is telling me to build the roof (ie, run the rafters) with a slight pitch. Not much rain where I am, so a 1/8" drop per foot would be ok, but that's still 3" front to back. I could build a flatter area on top of the roof material, and finish it with ? surface, (Trex doesn't last here.) Trying to avoid walking on comp rolled roofing here.
So a flat roof or pitched?
Use the roof as a walking surface?
Different material for roof?
Build a raised flat area over the pitched roof?
Any out of the box ideas appreciated!
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Don_P
Member
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# Posted: 30 Sep 2015 10:38pm - Edited by: Don_P
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A friend is doing one of this type, aluminum. It is pitched, I'd break it both ways from a high centerline if possible just to cut down on the overall drop and make it symetrical.
https://www.nexaninc.com/products/decking/lockdry-waterproof-decking
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Just
Member
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# Posted: 30 Sep 2015 11:20pm
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In the first pic you see my bike shed at our cottage with a deck on top.It has a fall of 2in. in 10 ft.. that dose not seem noticeable to me , seems to run any rain off quickly .
The roof has a layer of industrial roof deck as a structural layer then a pt. deck built over it 5\4s x 6 in.
In the second pic you can see I used the same roof deck to cover our old trailer we use as a hunt camp . I purchased the metal as scrap so I have no idea of a price . I was told it is used as roofing in flat roof industrial buildings , comes in different gauges and lengths .
flat roof deck
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flat roof steal
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Borrego
Member
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# Posted: 1 Oct 2015 04:08pm
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Thanks, guys...
Just, when you say 'industrial roof deck', what does that mean?
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Just
Member
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# Posted: 1 Oct 2015 06:12pm
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the metal roofing I used came 2 ft. wide and 10. ft. long it is very ridged has a top corrugated plate and a bottom flat sheet of steal . The small deck 8x10 has no support under the steel and it is a good solid floor ,no spring . I think it is made in the US around Baltimore the folks I got it from called it roof deck . Sorry all I know.
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Don_P
Member
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# Posted: 1 Oct 2015 09:51pm
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Looks like pan deck, was it for pouring a concrete deck on?
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Just
Member
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# Posted: 1 Oct 2015 10:09pm
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I don't know I got 60 sheets at my favorite price .
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