New Flooring Cover

I finally started the floor covering project.   Not as many staples as I thought.  As you can see in the pictures there was some water leakage.  The wood is not flakey just stained.  I sealed all the outside side panels about 4 months ago.  I believe this is old stains.  Will be using sterling oak lifeproof vinyl planks. 

Looking good. I'm about to do the same after I replace the microwave / convection oven.
 

I agree in that the subfloor is not water-damaged, just having water-marks.

I see you have a little water-mark near the main entry door.  Do you know what caused that?

Looking good. I'm about to do the same after I replace the microwave / convection oven.

Thanks.  BTW, I took Ron D's suggestion on the bolts holding the microwave.  Works great and stops most of the noise.  Will be posting a couple picture of progress later.

Ron,  Don't know what water mark near the main entrance.  If you are looking to the left of the door, that is about a 1 inch gap as the other side of the door also has a gap.

Ron,  Don't know what water mark near the main entrance.  If you are looking to the left of the door, that is about a 1 inch gap as the other side of the door also has a gap.

The darkened plywood along the transition wall behind the passenger seat.

It appears to be a stain like the one behind the drivers seat.  I would have to guess that it leaked at the seams on the outside.  I would even try to guess how long ago it leaked, but it is not rotted which is a good thing.  I am the 3rd owner and I think the original owners did not take care of it very well.  The 2nd owners are kinda like me.  Fix and do preventive maintenance.
I have sealed everywhere I could one the coach. 

Updated pictures.  Will be putting barrel chair and tables bases back in.

RE: Stains on the floor

If you look on the outside, there is the trim that covers the transition between the wall and the lower fiberglass valence. 

On our 2006, the seam behind was NOT sealed. It allowed water in just like you have there, then it would puddle in the step well.

Removing the trim on the outside, sealing behind it and replacing the trim has resulted in NO leaks since. 

Volk,   After reading your initial write up, I immediately went out and got some clear sealant and sealed those first and then everything that was attached or had a seam.  It's incredible when you start looking around an RV how many possible placing for leakage there is.  I believe the drip rail closest to the driver door over the slide out canopy has got to be one of the worst designs I have seen on an RV.  It directs the water almost at the seam of the slide.  Anyway, I built a longer gutter extender for mine.
Again, thanks.

I had wondered if water on rainy days swirls around and gets blown upward where the floor meets the backside of the transition wall there, a condition every PC owner might experience and should seal better.

I also wondered if it would have been a good idea to buy some cheap vinyl flooring or self-stick tiles to adhere over the raw plywood to level it and to prevent floor squeaks.  While driving, you wouldn't want to hear some irritating squeaking sourced right there behind the two front seats.

I installed the same type of wood-based interlocking flooring at home in our office.  The company that sold me the flooring also sold me a very thin rolled subflooring like a construction paper, used to eliminate creaking and squeaking.  I recall him saying that vinyl flooring accomplishes the same thing.

Volk,   After reading your initial write up, I immediately went out and got some clear sealant and sealed those first and then everything that was attached or had a seam.  It's incredible when you start looking around an RV how many possible placing for leakage there is.  I believe the drip rail closest to the driver door over the slide out canopy has got to be one of the worst designs I have seen on an RV.  It directs the water almost at the seam of the slide.  Anyway, I built a longer gutter extender for mine.
Again, thanks.

Very impressive SIR!  You are a MAINEiac.  Green Mtn Boy here.

Let those who follow note what WORKS. 

Interesting problem.  I experienced wet carpeting after driving in torrential rain.  Appears water is coming in thru floor.

Volk,  Actually Michigan but that's ok.  My oldest son works in Bangor-Washington. 
Taildragger,  I think Ron D was possible alluding to that.  I will be under the RV tomorrow and just take a gander to see if it possible.

Will report back.

BTW, would you bolt the chair over the tile OR cut ta square for it to sit directly on the wood?   I'm thinking about just bolt on top.

Volk,  Actually Michigan but that's ok.  My oldest son works in Bangor-Washington. 
Taildragger,  I think Ron D was possible alluding to that.  I will be under the RV tomorrow and just take a gander to see if it possible.

Will report back.

BTW, would you bolt the chair over the tile OR cut ta square for it to sit directly on the wood?   I'm thinking about just bolt on top.

D'oH!   There are OTHER Bangors?    I stand corrected. 

I would just bolt he seat over the flooring.