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Old 06-24-2009, 10:38 AM   #1
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A roof for my deck


I am trying to figure out what the best way to put a roof on my deck would be. The deck is 16'9" by 16'4". I was planning on using 4x4's for the support on the corners away from the house and using 2x6's to construct the roof. My house is a trilevel with the roof sloping to the sides not the back where the deck is. The roof over the deck wil need to slope down in two directions because where it will tie into the house on the southwest corner is only about eight feet and that is the height that I want the roof. So the west and north sides of the roof will have to be flat and the others sloping in oreder to get a good enough pitch for colorado weather. I apologize this is really hard to explain. If there is any imput or anything I can try to clear up please let me know. Thank you in advance.
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Old 06-24-2009, 11:55 AM   #2
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A roof for my deck


A 2x6 will not span 16' as far as I know, especially with snow
Where are you located?
Snow load - heavy where you are in Co?

I think you'd need 2x10's at 16" OC

2x8's won't even make it at 12" OC

Last edited by Scuba_Dave; 06-24-2009 at 11:59 AM.
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Old 06-24-2009, 01:35 PM   #3
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A roof for my deck


With a tri, you are matching a gable on the house on one side, and the house's tails on the other.

1. How does the house sit- per N., E., S., and West corners?

2. Which compass points are the house's gable, and tails? Be safe, G
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Old 06-24-2009, 08:58 PM   #4
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A roof for my deck


Where I live I had to build for 30 lb./s.f. snow load.
To do so I had to laminate 3, 2X10's to span 12 feet.
I would expect that your snow load would be equal to mine if not greater.
Your rafters will likely be 2X8's on 16" centers. Don't quote me on this as I didn't check the tables.
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Old 06-25-2009, 01:57 PM   #5
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A roof for my deck


Here is how I did it myself - Easy deck..

http://easydeck.blogspot.com/

tfc



edit: updated pictures 6/29

Last edited by tfc; 06-29-2009 at 08:31 AM.
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Old 06-29-2009, 07:58 AM   #6
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A roof for my deck


Thank you all for the reply I will take all this into consideration.

Wildie, what tables are you talking about. That would be really handy to have being that the biggest thing is being able to hold up the weight of the snow.

GBAR, my house faces SW. The deck is on the back (NE) and is on the west half of the back of the house. I will have to match the gables.

Scuba Dave, the snow load can get rather heavy here but I am not for sure the regulations on how much weight the roof has to be able to bear. Hopefully the tables from wildie will help me with that.

Thanks again
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Old 06-29-2009, 08:49 AM   #7
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A roof for my deck


Depends on the pitch (will affect span), ground snow load in your area, whether ceiling is attached to the rafters, and lumber available in your area as far as rafter size. I am not sure what you are describing but a couple of pictures of whats there would help to figure out what is you need to do. I'll check back later for pics.
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Old 06-30-2009, 01:18 PM   #8
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A roof for my deck


Quote:
Originally Posted by lvgsbrown1 View Post
Thank you all for the reply I will take all this into consideration.

Wildie, what tables are you talking about. That would be really handy to have being that the biggest thing is being able to hold up the weight of the snow.

GBAR, my house faces SW. The deck is on the back (NE) and is on the west half of the back of the house. I will have to match the gables.

Scuba Dave, the snow load can get rather heavy here but I am not for sure the regulations on how much weight the roof has to be able to bear. Hopefully the tables from wildie will help me with that.

Thanks again
I'm in Ontario, Canada and use tables that required by the Ontario building code.
If you Google 'span tables' you should be able to locate a table that is suitable to your area.

Here's a link to an online calculator that you may find of interest. http://www.awc.org/calculators/span/...rcalcstyle.asp
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