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Old 05-13-2010, 09:54 AM   #1
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Roof/Deck Question


Hello Everyone, I am new to the site.

Here's the problem...
There is a small patio area above a portion of my garage, which also acts as a roof over this portion of the garage. I say its about an 8'x10' area, maybe smaller. There was a deck that extended off of this, over the driveway, that I eliminated. The patio is built like trash and allows water damage to occur in the garage. Right now, it is wooden joists with a piece of 5/8" plywood over it. The joists sit on top of the garage wall on one side, leaving large gaps which allow you to look right into the garage.

I am trying to figure out a way to build a roof/deck combo or a deck over a small graded roof. Whatever is built needs to be strong enough to put a 4x4 in the corner to support the hanging roof above. I am also thinking about using concrete, but think I would like to stay clear of this. Any help is appreciated. I don't have pics right now, will try to post later.

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Old 05-18-2010, 08:47 AM   #2
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Roof/Deck Question


I tried posting this in the Building/Construction forum but didn't receive any responses...


Here's the problem...
There is a small patio area above a portion of my garage, which also acts as a roof over this portion of the garage. I say its about an 8'x10' area, maybe smaller. There was a deck that extended off of this, over the driveway, that I eliminated. The patio is built like trash and allows water damage to occur in the garage. Right now, it is wooden joists with a piece of 5/8" plywood over it. The joists sit on top of the garage wall on one side, leaving large gaps which allow you to look right into the garage.

I am trying to figure out a way to build a roof/deck combo or a deck over a small graded roof. Whatever is built needs to be strong enough to put a 6x6 in the corner to support the roof above, or I can extend the 6x6 down to the concrete block if need be. I am also thinking about using concrete, but think I would like to stay clear of this, don't know if the beams underneath will support the weight. Any help is appreciated.

I attached a rough sketch of what it looks like now.
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File Type: pdf patio.pdf (11.2 KB, 128 views)

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Old 05-20-2010, 08:47 AM   #3
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So nobody has any advice on this? I looked into a product called lockdry decking, which is pretty pricey but would do the job.

I was also thinking about replacing the joists with 2x6's and covering with plywood and a rubber roof and then using 2x's over top of that and decking on the 2x's.

I'm not sure it would be a good idea to screw the 2x's right into the rubber roof though, unless I coat the screws and the sides of the boards with some heavy duty caulking.
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Old 05-20-2010, 01:59 PM   #4
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There are just so many things wrong with this...

OK, what you need to do is post a bunch of pictures of this deck, how it connects to the structure, what it looks like underneith. The more the better.

I suspect this is a botched add on, and there may be bigger problems that what you are experiencing.
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Old 05-20-2010, 02:34 PM   #5
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Quote:
Originally Posted by xxPaulCPxx View Post
There are just so many things wrong with this...

OK, what you need to do is post a bunch of pictures of this deck, how it connects to the structure, what it looks like underneith. The more the better.

I suspect this is a botched add on, and there may be bigger problems that what you are experiencing.
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Old 05-20-2010, 03:08 PM   #6
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Paul & tpolk,

Sorry, I totally botched that first attachment. I don't have any pics right now, but threw together a more accurate drawing, which is attached.

Ok, so I built 5 temporary supports in the garage to replace the beam over the garage door openings. The beam was rotted to hell from a botched overhang that was built on the garage that I took down. You can see the replaced beam on the drawing, we'll call it Beam 1. The replaced beam, which is 3 2x12s of treated wood, is the main support for a beam that runs back into the garage perpendicular to it, which can be seen in the drawing. This beam is two 2x10s and sits atop a steel Ibeam on its other end. We'll call this Beam 2.

The floor joists for the kitchen addition (which is labeled and used to be an enclosed porch I believe) tie into beam 2 on one end and sit atop the block on the other. The floor joists of the patio that is now there tie into beam 2 on one end and sit atop the block on the other, similarly.

There is a 4x4 at the corner of the patio that supports an above roof. I will replace it with a 6x6. Plywood currently covers the joists and acts as the patio.

That plywood over the joists, which I call the patio also acts as a roof over part of the garage. I need to rebuild this part so I have a functioning roof that is watertight and also acts as a deck. Sorry about the confusion with the first dwg.
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Old 05-20-2010, 05:17 PM   #7
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So this abortion of an addition was the following: Put an addition overtop existing one car garage. Put another one car garage next to the first. Put flat deck over second garage. I'll bet there were "plans" for this plywood to be covered but they ran out of funds first

How much room do you have over the current plywood deck to the thresholds of your doors?
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Old 05-20-2010, 06:52 PM   #8
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Paul,

Although I don't disagree with your theory of the addition being an abortion, you are a bit off.

The garage was always a 2 car garage. Most of the garage is under the Kitchen and dining room, which I am trying my best not to disturb b/c I am done remodeling those 2 rooms. The garage however extends out the back further than these 2 rooms.

Half of the original porch was enclosed. It is bricked in with the rest of one side of the house, the other half was open, I just replaced the original french doors to this area. With the addition, they left the original door opening in the kitchen and the addition was a breakfast nook area. I since took that wall out and made it one big room.

All rotted wood under the kitchen and dining room has been replaced. Wasn't fun.

To answer your question, I have any where from close to an inch under some of my thresholds to 1/2". Like everything else in this God forsaken house, its not consistent. I am not opposed to taking out the joists supporting this "deck" in the garage. My main goal is to get a roof up over the garage that is also a deck. The area is 8' x 10.5'

Attaching some pics, The garage opening is covered in plastic currently.
Attached Thumbnails
Roof/Deck Question-cimg0012.jpg   Roof/Deck Question-cimg0013.jpg   Roof/Deck Question-cimg0014.jpg   Roof/Deck Question-cimg0018.jpg   Roof/Deck Question-cimg0019.jpg  

Roof/Deck Question-cimg0021.jpg  
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Old 05-20-2010, 06:57 PM   #9
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a few more

The last one was from before i tore down the deck and the overhang that the previous owner put in to gain an extra 2 feet in the garage for some reason...
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Roof/Deck Question-cimg0022.jpg   Roof/Deck Question-cimg0024.jpg   Roof/Deck Question-cimg0017.jpg   Roof/Deck Question-cimg0004.jpg  
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Old 05-20-2010, 08:23 PM   #10
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Ahh - that cleared up alot - thanks!

Give up on that porch as it is. There is no way you are going to be able to deck and flash it AND have those openings.

Instead, enclose that space and go up to the existing porch ceiling. From there you could reuse those exterior doors and move them to where that old deck was. I think you can put that old deck back on again (that you demoed) - I think it's a nice addition to the house. You would of course have to flash them correctly.
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Old 05-20-2010, 09:26 PM   #11
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Paul,

I was given that suggestion by someone else. That is something that I want to avoid. There has got to be something else I can do.

What do you think about this...
2x6 floor joists spaced 12" OC
5/8" plywood over the joists, covered with rubber roofing
Flash the brick and siding over the rubber roof
Put 2x4s over the rubber roof (I'm worried about screwing into the rubber roofing)
Attach decking to the 2x4s
Put the 6x6 in the corner on top of the deck to support the above roof

Install new siding on the addition area and over the 2x8s that are above the block around the deck.

Any thoughts?

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