Improper gutter, roof/siding and rot - with photos

theedudenator

I have rot on my house that I want to fix.

The siding/roof interface has rot on the siding.
What is the proper way for this interface.

The top level gutter drains on the roof, then flows into the bottom gutter.
What is the proper way to direct the gutter?

The "trim" on the house around the gutter is rotted.
I am guessing if the gutter was fixed proper this would not be an issue?

Roofmaster417

far as the rot on the corner post rot it can be a couple of things.One being the corner post (1"x6"s) were too close to the roof deck allowing it to come into contact with the flow of water coming off that particular slope.

Another is the corner posts were never properly primed or treated prior to painting them.

Simple fix.Remove the down spout,remove the rotted 1"x6"'s,then measure then cut.Prior to priming or treating make sure the 1"x6"s fit properly.Basically do a mock up.Allow for the 1"x6"s not to come in contact with the roof deck or the flow of water off that slope.Prime or treat,paint and then install,,the install the down spout.

To reroute the water you will need an elbow extender that connects to the elbow and rerouting into the gutter.Or buy another elbow ,,connect it and route it into the gutter.At the beginning of the wall the step flashing is resessed in the wall.The water flow is running down the wall ,running right into the corner post beside the gutter.I bent my first piece of step flashing rerouting the water away from the corner post versus running right into that portion of the corner post.

Another way would be to replace the gutter along that section.Extending the gutters several inches to the left would allow the water to go into the gutter rather that hitting that portion of the corner post.

The siding is the same as your corner posts.It is too close to the roof deck and the flow of water for that slope.Depending on how high up the wall the rot has made it you might be able to measure an 1" or so off the roof deck,pop a chalk line and cut the rotted siding out.Remember to treat the newly exposed siding after the cut..

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rossfingal

To add to what "Roofmaster417" says -
Check the flashing underneath the corner post.
rossfingal

Hammer450R

What you need to do is extend that gutter to dump into the other gutter. Putting your whole main roof's water onto that corner roof will sure cause issues down the road.

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kwikfishron

If you do cut the siding up off the roof (and you should) be careful not to cut to deep. If you cut through the flashing you’ll be opening up a whole new can of worms.

Set the saw just deep enough so you can easily “break out” the piece, then clean up the splinters with a sharp chisel or utility knife. It’s also important that you prime and paint that bottom edge of the siding.

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Windows on Wash

+1 to Hammer450R.

I can't stand that type of gutter routing. It should have been continued to the next eaves trough.

That all being said, there is still about a 100% chance that corner post would rot for the reason that Roofmaster417 mentioned.

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joecaption

T-111 was never suppost to be installed that close to the roof.
What we have done many times is cut it back, sealed the cut, slid a strip of Z moulding up under the siding and used vinyl lumber sitting 1" up off the roof.
Use stainless trim head screws to attach the vinyl. These does several things, it keeps the wood away from the roof, it's removeable so if the roof gets redone it can be removed to replace the flashing.
If the trim is also replaced with vinyl it will never rot or need painting again.
Also add that needed elbow and a piece of down spout so the water hit the gutter not the roof.

Just priming and painting new wood trim on all sides is nice but why not make it better?

Hammer450R

If you look at the one pic it shows the gutter guard is jacking up the end of the shingle right where the gutter is dumping on to it. Creating a flat spot right where tons of water will be flowing.

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Hammer450R

Personally i would cut it back and paint it real good. Why add a place for moisture to build up and rot it again just like the roof did? Unless you leave a good 1/4 gap from the bottom of the t-111 to the Z. JMO

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theedudenator

More photos of rot after I removed trim.

theedudenator

Some diverter flashing I purchased.
It slipped behind the existing flashing easily.

theedudenator

Not sure how to handle the downspout.
It doesn't really hit the gutter with supplies I can buy at the store.
I think ultimately I need to extend the gutter back some, which I plan on doing.

theedudenator

So next I will cut the siding above the roof.
Probably need to be 1" or more due to rot and the guide on my saw.

Then not sure if I will add vinyl or what under it.