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How To Attach Deck Roof Support Posts

 
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Old 12-17-2016, 10:38 AM   #21
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Re: How To Attach Deck Roof Support Posts


I like to go down through and set the post right on the deck beam. Strap both sides. Done!
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Old 12-17-2016, 12:00 PM   #22
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Re: How To Attach Deck Roof Support Posts


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Originally Posted by Californiadecks View Post
I like to go down through and set the post right on the deck beam. Strap both sides. Done!
The strapping is most likely req if he's in a hurricane zone. Good idea since it resists uplift
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Old 12-17-2016, 03:49 PM   #23
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Re: How To Attach Deck Roof Support Posts


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Originally Posted by Irishslave View Post
The strapping is most likely req if he's in a hurricane zone. Good idea since it resists uplift


Everyone has something that causes uplift. Hurricane, tornadoes, earthquakes, etc.
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Old 12-17-2016, 09:23 PM   #24
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Re: How To Attach Deck Roof Support Posts


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Originally Posted by Californiadecks View Post
I like to go down through and set the post right on the deck beam. Strap both sides. Done!
How do you do this? If it's a 4x4 it will be thicker than a doubled up 2x deck beam. Is it acceptable to use plywood spacer between the two deck beam members?
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Old 12-17-2016, 09:40 PM   #25
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Re: How To Attach Deck Roof Support Posts


We have clay soil here so I have to spread all that weight out. Plus I wanted this deck to support a 80PSF live load to account for the extra roof weight. Here's my design so far.

16x12 deck.

18" footers and 12" tubes for post footings 14" deep plus 6" of gravel = 20" deep (frost line in GA is pretty shallow. It's supposed to be 60 degrees F here tonight!).

Deck beam [email protected] [email protected] post across the 16' deck beam and [email protected] post bisecting the span of the 12' rim joist on either side. 2x10 ledger and joists 16" O.C.

Notch the post 3" to hold the beam and continue the beam up to hold the roof, which will be a 4:12 pitch. 2x8 ridge, double 2x6 rafters with 1/2" spacer 4' O.C., (actually probably some kind of hand-build truss-ishness with fan plates) then T&G boards and roofing to match existing.

Do I need to continue all the posts up to the roof or just the corners to hold the roof header and rim joist posts to support rafter tails?

Since I am going to install trusses the ridge will be only decorative and won't be supporting any weight so I just need to make sure I have strong roof headers all the way around. How do I support the rear end of the roof header on the 12' sides? The deck roof will dive into the existing house wall, not tie into a roof.
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Old 12-17-2016, 10:04 PM   #26
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Re: How To Attach Deck Roof Support Posts


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Originally Posted by John Hyatt View Post
Provide foundation.

Use 24'' high 1/2'' U shaped steel brackets fastened through the decking into the framing supported by that foundation.

Bang Bang. Done.

JonMon www.deckmastersllc.com
I'm sorry, I'm still having a hard time imagining this.

What do you mean by "foundation?"
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Old 12-17-2016, 11:08 PM   #27
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Re: How To Attach Deck Roof Support Posts


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Originally Posted by csmith1281 View Post
How do you do this? If it's a 4x4 it will be thicker than a doubled up 2x deck beam. Is it acceptable to use plywood spacer between the two deck beam members?


Ahh! Yes! I forget about you guys doing it that way. We get off the shelf 4x and 6x solid beams out here.
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Old 12-18-2016, 04:06 AM   #28
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Re: How To Attach Deck Roof Support Posts


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I have a client who wants a deck built approximately 10' off the ground with a roof. 20' 6x6 PT posts would be long enough to use as both deck support and roof support, but the expense isn't justified because all that is needed to support the roof would be 4x4s. I could frame the deck with 6x6s I can buy off the rack at the lumberyard and not have to special order something twice as expensive, but I am not sure how to attach the 4x4 posts that would support the roof to the deck framing. I have read that code allows toenail screwing through the roof posts, decking and into the framing provided they penetrate deck framing at least 2", but that just doesn't sound right to me.

Can anyone explain the proper, code approved way to attach 4x4 roof support posts to a deck 10' off the ground?
So time you're wasting trying to figure out how to do this multi-material mashup and metal, probably could have paid for the longer 6x6s and you'd be a day ahead or more. Just a thought.
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Old 12-18-2016, 02:14 PM   #29
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Re: How To Attach Deck Roof Support Posts


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Originally Posted by wallmaxx View Post
So time you're wasting trying to figure out how to do this multi-material mashup and metal, probably could have paid for the longer 6x6s and you'd be a day ahead or more. Just a thought.


That is indeed a thought and a very useful one at that. I tend to believe that time spent in planning and designing saves time and money during the build and leads to a safer, higher-quality finished product. Bonus if you can charge enough to cover your design time as an overhead cost.


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Old 12-18-2016, 06:59 PM   #30
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Re: How To Attach Deck Roof Support Posts


Quote:
Originally Posted by csmith1281 View Post
We have clay soil here so I have to spread all that weight out. Plus I wanted this deck to support a 80PSF live load to account for the extra roof weight. Here's my design so far.

16x12 deck.

18" footers and 12" tubes for post footings 14" deep plus 6" of gravel = 20" deep (frost line in GA is pretty shallow. It's supposed to be 60 degrees F here tonight!).
Quote:
Originally Posted by csmith1281 View Post
What do you mean by "foundation?"
Im guessing he meant something beefier than you described, 14" of a 1' sonotube is not going to support that, no matter the frost line, I'm not sure of your background, and I know I am just some dude on the interwebs, but please let someone with experience design this before someone gets hurt when this blows over

Quote:
Originally Posted by csmith1281 View Post
That is indeed a thought and a very useful one at that. I tend to believe that time spent in planning and designing saves time and money during the build and leads to a safer, higher-quality finished product. Bonus if you can charge enough to cover your design time as an overhead cost.
yet what you are describing is not safer, please find a designer with experience, if you can cover design time as overhead, why cant the proper material be covered as "material cost"?
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Old 12-18-2016, 09:56 PM   #31
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Re: How To Attach Deck Roof Support Posts


Foundation = creet piers placed so the post lands right on it, so you get dead bearing.

You don't get out much do Ya.

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Old 12-19-2016, 01:47 AM   #32
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Re: How To Attach Deck Roof Support Posts


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14" of a 1' sonotube is not going to support that....
The tube isn't the only part of the footing. There will be an 18" footer form with a 12 tube above it. There will be 6 of these all the way around the deck.
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Old 12-19-2016, 01:49 AM   #33
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Re: How To Attach Deck Roof Support Posts


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Foundation = creet piers placed so the post lands right on it, so you get dead bearing.
OOOOH....I thought you were talking about framing a special post support on the deck.

Apparently I don't get out enough...I just saw Rogue One tonight, though, so...cool points?
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Old 12-19-2016, 01:52 AM   #34
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Re: How To Attach Deck Roof Support Posts


Quote:
Originally Posted by John Hyatt View Post
Provide foundation.

Use 24'' high 1/2'' U shaped steel brackets fastened through the decking into the framing supported by that foundation.

Bang Bang. Done.

JonMon www.deckmastersllc.com
I'm still not seeing these brackets, though. You are saying you would frame the deck, then frame the roof and attach roof support posts to the deck by setting them on the decking and then fastening them to the joists through the decking?
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Old 12-19-2016, 09:08 AM   #35
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Re: How To Attach Deck Roof Support Posts


Or you could do it Mike style, placing the bracket directly on the pier and frame around it.

Beams sit on top of posts. There is no notching involved.

Normally I would not bring up what happens to pressure treated 6x6 exposed to the sun but you don't seem all the savvy building outside. Or how heavy duty 1/2'' steel is.

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Old 12-19-2016, 09:14 AM   #36
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Re: How To Attach Deck Roof Support Posts


You being Military and all a lot of slack will be extended. But there is a big difference between trimming trees and building a project like this.

On this one you might be well advised to hire a Pro and carry his tools for a while.

J.
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Old 12-19-2016, 09:55 AM   #37
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Re: How To Attach Deck Roof Support Posts


Quote:
Originally Posted by John Hyatt View Post
Or you could do it Mike style, placing the bracket directly on the pier and frame around it.

Beams sit on top of posts. There is no notching involved.

Normally I would not bring up what happens to pressure treated 6x6 exposed to the sun but you don't seem all the savvy building outside. Or how heavy duty 1/2'' steel is.

J.
That would be my issue with using 20' 6x6 PT. It's hard enough to find an 8' piece that doesn't suck.
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Old 12-19-2016, 09:58 AM   #38
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Re: How To Attach Deck Roof Support Posts


Quote:
Originally Posted by John Hyatt View Post
You being Military and all a lot of slack will be extended. But there is a big difference between trimming trees and building a project like this.

On this one you might be well advised to hire a Pro and carry his tools for a while.

J.


Thank you for your input. You seem like an experienced guy I could learn a lot from, but honestly it seems like you're taking more pleasure out of telling me I don't know what I'm doing. Just so you know, I plan to submit drawings to the building department, involve the inspector, and have a proper permit pulled. I am working towards getting my license, so I need to show the state board that I was responsible for two projects that required a permit. Nobody's going to build anything that isn't perfectly safe and doesn't exceed code requirements. I am here asking questions so I can get better at my craft.

I have built plenty of things outside using what's available at Home Depot, but I have never seen custom fabricated steel brackets and I am interested in learning about that. The way it has been described here by two different people just doesn't compute in my head. Is there anyone who would be willing to maybe talk with me on the phone or post a picture of this set up? A picture is worth 1000 words.




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Old 12-19-2016, 10:00 AM   #39
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Re: How To Attach Deck Roof Support Posts


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That would be my issue with using 20' 6x6 PT. It's hard enough to find an 8' piece that doesn't suck.


I looked into the possibility of using 4 inch steel posts, but didn't find them available initially. Does anybody know of a supplier where those are available, or do they have to be custom fabricated?


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Old 12-19-2016, 10:04 AM   #40
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Re: How To Attach Deck Roof Support Posts


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Thank you for your input. You seem like an experienced guy I could learn a lot from, but honestly it seems like you're taking more pleasure out of telling me I don't know what I'm doing.
Hazing here is par for the course, but you seem to be rolling with it like a pro.

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