Water leak on floor driving through heavy rain

[norlfran]

I recently drove through a very heavy rainstorm on the interstate and my wife noticed water accumulating on the floor at each end of the front slide. When we reached our campground at the end of the day and extended the slide, we noticed a wet patch on the carpet about 3 x 4 inches at the end of each slide. Apparently water was coming up from the floor while driving.

We examined the roof and walls very carefully and are absolutely sure the water is coming from underneath the coach. I went under the coach with a flashlight and cannot see any area where the water might be coming in.

Any ideas?
I have a 2011 Serrano 31X on a Workhorse chassis.

[Ernie Ekberg]

When under way, coaches create a negative air pressure inside. If you have a slight void in your slide seals, I suspect that water was introduced from that negative pressure.

[Monacoach]

Water can easily penetrate poorly caulked seems on the outer face of slide out. Check them and re caulk with clear silicone if thats the case.

[Mr_D]

Originally Posted by norlfran

I recently drove through a very heavy rainstorm on the interstate and my wife noticed water accumulating on the floor at each end of the front slide. When we reached our campground at the end of the day and extended the slide, we noticed a wet patch on the carpet about 3 x 4 inches at the end of each slide. Apparently water was coming up from the floor while driving.

We examined the roof and walls very carefully and are absolutely sure the water is coming from underneath the coach. I went under the coach with a flashlight and cannot see any area where the water might be coming in.

Any ideas?
I have a 2011 Serrano 31X on a Workhorse chassis.

That's a warranty issue for your RV manufacturer, not the chassis manufacturer. Take it to your dealer and get it fixed.