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Old 05-06-2010, 11:08 PM   #1
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Rotted 4x12 Corbels - how to fix?


I'm new around here. I'm working through a number of repairs on my recently purchased house and am really stumped on what to do about my rotted "corbels". I'm not even sure these would be considered corbels - they're 4x12 beams that support a window seat type protrusion from the garage (minimal load). Pics are attached.

These were hidden by a large untrimmed hedge, and were getting soaked by the sprinklers. I think the rot is due mostly to the wood getting wet and never drying (no sun or air exposure)

Questions:
- Do these look structural?
- Can I just cut off the rotten part (4-6" out from the brick is still solid) and attach another 4x12 piece in the front? If so, what would be the best way to remove the damaged wood and attach the new wood?
- Does this look like dry rot, or is this termite damage? (not that it matters, just curious)

I've looked around a bit and found sources to get replacement 4x12 with the pattern cut in. My thought was to cut the rotted part off with a sawzall and then use lag bolts to attach the new wood, possibly with some plates to tie the new 4x12 into the old 4x12 on the bottom and sides. My biggest concern is if this is structural I don't think any repair I do will be as strong as the original 4x12 beam was. Also, if it's structural I'll have to support the structure while I cut the rotten wood off.

I looked around and didn't see anything similar on the boards. Any input is much appreciated.
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Rotted 4x12 Corbels - how to fix?-corbel_1.jpg   Rotted 4x12 Corbels - how to fix?-corbel_2.jpg   Rotted 4x12 Corbels - how to fix?-corbel_3.jpg  

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Old 05-07-2010, 04:11 AM   #2
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Rotted 4x12 Corbels - how to fix?


Those look decorative --not structural to me---Mike---

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Old 05-07-2010, 06:48 AM   #3
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Rotted 4x12 Corbels - how to fix?


Interesting look.

You sure wouldn’t think they were structural but I’ve seen stranger things.

Do you know which way the joist are running in that room?

How far back behind the brick do they run?
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Old 05-07-2010, 11:37 AM   #4
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Rotted 4x12 Corbels - how to fix?


I've attached a few more rough diagrams. There aren't any joists in the room behind the corbel/windowseat area. It's a slab floor garage and the floor is level with the ground shown in the pictures above.

It seems likely they wouldn't be structural, but I'm puzzled why they used 4x12 - seems like an awfully large piece of ornamental wood.
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Rotted 4x12 Corbels - how to fix?-corbel_sketch.jpg   Rotted 4x12 Corbels - how to fix?-corbel_sketch_2.jpg  
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Old 05-07-2010, 01:09 PM   #5
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Rotted 4x12 Corbels - how to fix?


Looking at the pictures it looks like the outside wall is supported by the corbel. Is any of the 2x4 bearing on the brick?
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Old 05-07-2010, 01:22 PM   #6
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Rotted 4x12 Corbels - how to fix?


Quote:
Originally Posted by kwikfishron View Post
Looking at the pictures it looks like the outside wall is supported by the corbel. Is any of the 2x4 bearing on the brick?
Sorry, my drawings didn't show it well, but there are notches in the brick for the corbels, so the 2x4 frame does rest on the brick (you can kind of see it in the first pics I attached). I attached another drawing showing things from the front.
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Old 05-07-2010, 01:30 PM   #7
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Rotted 4x12 Corbels - how to fix?


If it was me I’d get rid of those lovely corbels and fill in the brick. If you want to keep the look just cut the out of there, make new ones and glue and screw from from underneath.
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Old 05-07-2010, 05:42 PM   #8
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Rotted 4x12 Corbels - how to fix?


brick is not considered a structural support
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Old 05-07-2010, 05:53 PM   #9
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Rotted 4x12 Corbels - how to fix?


I appreciate the replies. I think my drawings may have confused people. I don't know how walls with ornamental brick work so I left that part out.

I've got brick about 20 - 24" up some of the front walls of my house. From what I can tell these are real brick and not veneers. Is the ornamental brick just stacked in front of the wall studs? What holds it on there? Sorry for the stupid question...

Anyhow, does that mean the 2x4's and corbels are likely just fastened to the studs behind the brick?
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Old 05-07-2010, 06:40 PM   #10
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Rotted 4x12 Corbels - how to fix?


Don’t know what the budget is but it wouldn’t take much to pour a footing and a small stem wall around that and build up to the outside and support it all. If you like the bricks you could reuse them and bring them out to the front were they should be or do something different.

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