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Open Roads Forum  >  Do It Yourself Modifications and Upgrades (DIY)

 > I'm installing rigid insulation on the underbody.....

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BackOfThePack

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Posted: 09/11/20 07:21pm Link  |  Quote  |  Print  |  Notify Moderator

Skirting is a better choice. Heavy-vinyl (snap). Blocking air movement is that which “insulates”.

Otherwise, avoiding moisture collection (accelerating rust & rot) is a genuine problem to solve when installing underfloor insulation


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dpglifestyle

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Posted: 09/12/20 04:08am Link  |  Quote  |  Print  |  Notify Moderator

As far as the bulge from the tank you can run a steel strap from frame rail to frame rail under the tank. Install with an empty tank, pull tight and screw to the frame. A lot of units come this way.


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agesilaus

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Posted: 09/12/20 07:25am Link  |  Quote  |  Print  |  Notify Moderator

dpglifestyle wrote:

As far as the bulge from the tank you can run a steel strap from frame rail to frame rail under the tank. Install with an empty tank, pull tight and screw to the frame. A lot of units come this way.


Exactly what I was thinking, use plumbers strapping aka hanger strap

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Get it at any hardware store.


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Minerrick

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Posted: 09/12/20 08:22am Link  |  Quote  |  Print  |  Notify Moderator

I was thinking the same thing.... thanks for the tip.

campigloo

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Posted: 09/12/20 08:57am Link  |  Quote  |  Print  |  Notify Moderator

When I got my panels they recommended well nuts. I couldn’t find any locally. I used hollow wall anchors and they’ve worked good. The sheeting on mine is 3/8 chip board. Call the manufacturer and they will probably tell you what’s up there. Three years and ~40k miles and there still very solid.

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Posted: 09/13/20 10:52pm Link  |  Quote  |  Print  |  Notify Moderator

minerick, a dealer installed three steel angle beams from one frame rail to the other to stop tank sag. They were screwed in the frame and were under the coreplast. This was on warrantee. I can't comment on the repair, because 75 miles later an axle locked up and we crashed the entire rig. It was an Arctic Fox 25R brand new. YeeHaw!
As a former resident of Truckee, I know how cold it gets. Are you trying to insulate the camper for winter usage or do you intend to tow it after the mods? If you're intending to park it for winter, you might consider the moisture element also. Propane heaters and stoves put out lots of dampness.

JoeH

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Posted: 09/14/20 07:24am Link  |  Quote  |  Print  |  Notify Moderator

dpglifestyle wrote:

As far as the bulge from the tank you can run a steel strap from frame rail to frame rail under the tank. Install with an empty tank, pull tight and screw to the frame. A lot of units come this way.


I would put a strip of old inner tube rubber or similar material to cushion the plastic tank from the steel.


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Minerrick

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Posted: 09/15/20 02:57pm Link  |  Quote  |  Print  |  Notify Moderator

JoeH wrote:

dpglifestyle wrote:

As far as the bulge from the tank you can run a steel strap from frame rail to frame rail under the tank. Install with an empty tank, pull tight and screw to the frame. A lot of units come this way.


I would put a strip of old inner tube rubber or similar material to cushion the plastic tank from the steel.


Nah, we live in a home in Truckee, so we have no intentions of trying to live a winter in it (Brrrrrrr). We use it typically for early and late fall camping, and oftentimes we get caught in snowstorms and cold weather, so we just want to try to keep it a bit warmer.

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 > I'm installing rigid insulation on the underbody.....
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