Does an RV need a metal sheeting underbelly?

[dwdanby]

My friend and I are having an argument. My 2004 Forest River Cardinal 32ft fifth wheel is having its black tank fixed. It has metal sheeting underneath the whole trailer. We are taking out the part under the black tank and patching the tank, and then - I think - we should put that sheeting back. My friend says it's after-market and no RV needs a metal underbelly. Since he is the one who would be doing the work, the burden of proof is on me. I think it's there for insulation and protection. What saith this forum?

 

[Bobtop46]

Need? No. I would put it back to keep road grime, critters, water, and anything else that might get up in there.

 

[jackiemac]

Definitely replace it. I think it's a big advantage for protection of the underside.

 

[Laura & Charles]

Our tanks are heated when we run heat. That sheeting is what creates a heated compartment.

 

[SpencerPJ]

It is NOT needed. It IS desired, it will help keep it cooler in the summer, warmer in the cooler seasons. I do not have a cover under my travel trailer. If I did, and I had to remove it, I would replace it.

 

[Kirk]

I don't remember ever having seen an trailer that came with the metal cover under the trailer like that so I'd bet some previous owner went to some expense to have it done. I would darned sure put it back even if your friend chooses not to do so.

 

[Utclmjmpr]

Sounds like a lazy friend..>>>D

 

[Lou Schneider]

Many trailers have an enclosed underbelly, as was mentioned it helps hold in heat so the tanks don't freeze as easily in cold weather. Most use a woven plastic fabric but a metal covering isn't out of the question.

 

[Skookum]

It probably also helps fuel economy for the tow vehicle.

 

[PerroSucio]

Sounds like a lazy friend..>>>D

Lol

 

[PerroSucio]

We have a 2001 37’ KZ that has a 1/8 thick continuous plastic sheeting that covers the entire underside. Metal would better keep out vermin …..

 

[Utclmjmpr]

Mine is aluminum sheet and I routinely re caulk and seal with liquid rubber to prevent moisture from eating it away..>>>Dan

 

[DutchmenSport]

If the metal sheeting was on there, then put it back. Yes, you do want that back on there. While you are at it, add some rolled insulation too.

 

[CharlesinGA]

Airstreams also have a metal sheeted underbelly. The rigid plastic sheeting (similar to corrugated cardboard but plastic instead) is commonly used now. I think the mesh fabric is going away as it allows moisture in (it was there to hold the insulation in place)

My travel buddy bought a 2017 Solitare? and it has the plastic sheeting, which appears to have been installed, not with screws, but with a .22 nail gun into the frame. Duh!

Charles

 

[Ray-IN]

My friend and I are having an argument. My 2004 Forest River Cardinal 32ft fifth wheel is having its black tank fixed. It has metal sheeting underneath the whole trailer. We are taking out the part under the black tank and patching the tank, and then - I think - we should put that sheeting back. My friend says it's after-market and no RV needs a metal underbelly. Since he is the one who would be doing the work, the burden of proof is on me. I think it's there for insulation and protection. What saith this forum?

You are correct, replace it! It is original from the factory.

 

[8Muddypaws]

We had an Arctic Fox from '96 to 2001. I think it had a metal underbelly.

 

[Gary RV_Wizard]

I had 1988 and 1990 trailers with a galvanized sheet metal under-pan, but since that era all that I've seen is some sort of heavy-duty plastic/fabric sheeting. Some low end models don't even have that.