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Old 03-30-2019, 12:21 PM   #1
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Post Rot (pic)


Usually I can figure out / find what caused a problem.
But cant explain this. Is on a small rental Home I own.
7 year old Porch post made out pine 1 x 8 rotting. 1 x 8's were primed and painted. And a bottom spacer of composite decking was used so would not soak up any water.

Two other post on the porch, made the same look perfect.

Any Ideas?

Thanks
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Old 03-30-2019, 12:49 PM   #2
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Re: Post Rot (pic)


Wood sucks...literally...these days.
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Old 03-30-2019, 12:54 PM   #3
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Re: Post Rot (pic)


Have you checked the rainwater runoff on that corner during a rain? Does it fall over the gutters and down the post rather than toward the downspout?
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Old 03-30-2019, 12:59 PM   #4
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Re: Post Rot (pic)


We have seen them where they are actually full of water from the top side.



We usually drill small weepers at the bottom to allow them to drain and a couple of vents is never a bad idea.
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Old 03-30-2019, 02:11 PM   #5
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Re: Post Rot (pic)


Quote:
Originally Posted by chandler48 View Post
Have you checked the rainwater runoff on that corner during a rain? Does it fall over the gutters and down the post rather than toward the downspout?
Ayuh,.... That is a kinda funky roof line convergence in the area,....

From above, was My 1st thought,.....
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Old 03-30-2019, 02:26 PM   #6
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Re: Post Rot (pic)


Seal the end grain of your new one with paraffin top and bottom and your good to go.
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Old 03-30-2019, 02:52 PM   #7
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Re: Post Rot (pic)


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Originally Posted by chandler48 View Post
Have you checked the rainwater runoff on that corner during a rain? Does it fall over the gutters and down the post rather than toward the downspout?
Yes, plan on going over there tomorrow and check the roof and gutter out.

I remember a couple years ago. I did a small repair on the side that had they same problem. But assumed some water got in around the bolt holes where the railing attached. Still did not make since at the time.

So the side with the railings really failed first now that I think of it. Sooner than the front and outside that were more exposed to weather.

Been awhile and a chance I still had a 4 x 4 post inside. If so I will just patch a foot up with some 3/4" pvc that I buy in 4 x 8 sheets.

If not may need to redo the whole post.

Actually hope I find a water problem. At least I know why.
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Old 03-30-2019, 10:06 PM   #8
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Re: Post Rot (pic)


It's rotting because you did not have the post sitting on a post base.
https://www.strongtie.com/postbases_...bases/category
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Old 03-31-2019, 12:09 AM   #9
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Re: Post Rot (pic)


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It's rotting because you did not have the post sitting on a post base.
https://www.strongtie.com/postbases_...bases/category
Sits on 3/4 composite which should serve the same purpose.
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Old 03-31-2019, 12:43 AM   #10
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Re: Post Rot (pic)


The inability of the base to weep can be problematic in that comparison.
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Old 03-31-2019, 09:09 AM   #11
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Re: Post Rot (pic)


Not even close, waters getting trapped between the post and the decking and being sucked up by capillary action.
It would be no different than the post sitting on concrete.
I'd be replacing the post and adding a post base, idealy then wrapping it with a post wrap and never have to deal with paining or rot again.
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