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Open Roads Forum  >  Truck Campers

 > Fire Testing For Safest Foam Board Insulation

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Camper_Jeff_&_Kelli

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Posted: 04/21/21 09:43pm Link  |  Quote  |  Print  |  Notify Moderator

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Fire Testing For Safest Foam Board Insulation
This is a continuation of my Dometic Fridge, Amish Built, Cooling Unit Replacement Topic. That project is finished and working awesome but! The question of Flammability of Foam Board Insulation Came Up. I decided to put my new RMAX by SIKA to the test against Pink, Blue, and the foam panel S&S included in the original build. I think this video will settle any argument as to which is the safest type foam board to use in a RV, TC, or Your Home. Enjoy!


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jimh425

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Posted: 04/22/21 10:51am Link  |  Quote  |  Print  |  Notify Moderator

Considering there are lots of items in an RV that burn much easier would it even matter if the foam was more fire resistant or not?


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Kayteg1

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Posted: 04/22/21 11:25am Link  |  Quote  |  Print  |  Notify Moderator

With small space fire, few extra seconds for escape can be matter of life of death.





Camper_Jeff_&_Kelli

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Posted: 04/22/21 11:53am Link  |  Quote  |  Print  |  Notify Moderator

jimh425 wrote:

Considering there are lots of items in an RV that burn much easier would it even matter if the foam was more fire resistant or not?


In this case, the insulation is next to a source of combustion. The fridge chimney is rated as needing 0 clearance. The chimney gets much hotter than touch. The old insulation paper was well browned. It is evident wherever a point of combustion occurs, the RMAX may self extinguish which is very advantageous.

Sjm9911

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Posted: 04/22/21 12:56pm Link  |  Quote  |  Print  |  Notify Moderator

Everything burns or melts when it reaches a certain temp. You could use rotten cotton, rockwool or whatever its called by you for an insulation thats flame retardant to about 1000 degrees.


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Sjm9911

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Posted: 04/22/21 12:57pm Link  |  Quote  |  Print  |  Notify Moderator

Oh, and have a working smoke and co detector in the camper.

Buzzcut1

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Posted: 04/22/21 06:11pm Link  |  Quote  |  Print  |  Notify Moderator

if I was planning on sealing gaps in areas where I was worried about fire I would use a fire resistant expanding foam that is certified for just that purpose. There are many of them commercially available with ASTM certification


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Camper_Jeff_&_Kelli

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Posted: 04/22/21 10:34pm Link  |  Quote  |  Print  |  Notify Moderator

Buzzcut1 wrote:

if I was planning on sealing gaps in areas where I was worried about fire I would use a fire resistant expanding foam that is certified for just that purpose. There are many of them commercially available with ASTM certification


I've used the Great Stuff Orange fire seal foam for a lot of penetrations for plumbing and electrical, also for framing fire blocking. Beware though, the fire block foam expands a lot and can have expansive force behind it that could be tricky to control in the thin wall space of truck camper walls.

Hemi Joel

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Posted: 04/23/21 08:41pm Link  |  Quote  |  Print  |  Notify Moderator

Good stuff, Jeff. Thanks for posting this and the fridge improvements.


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