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Old 01-24-2020, 08:57 AM   #41
Mini-Skoolie
 
Join Date: Jan 2019
Location: Denver, co
Posts: 58
Year: 1999
Coachwork: International
Chassis: International (I think)
Engine: Dt466e w/ Allison md3060
Rated Cap: 84, 35000 gvwr
Can anybody help with the issue of thermal bridging. I installed my firestove (dwarf 4kw) with a 6.5" cutout for the 6" double wall in the metal roof. Then I trimmed the inside spray foam (foam it green) and the wood ceiling to 10" to give me 2" clearance on all sides of the double wall stove pipe.

My question is, is there a spray foam that can be applied around the double wall stovepipe to adhere to the metal roof to fill that 2" gap so I do not have any thermal bridging and therefor condensation and maintain an air tight roof exit? All while maintaining the non-combustable factory specifications.

I will have the silicone boot on the roof as well as the stove pipe bracing kit. But I am concerned with the temp changes here in colorado we could get some moisture buildup if I am not careful. Especially since we will be traveling to high moisture areas around the U.S. and Canada.

Thanks for any help.

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Old 11-14-2020, 11:59 PM   #42
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@AaronTSchultz did you figure this out?
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Old 11-15-2020, 12:04 AM   #43
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Its not spray foam but I wonder if something like Rockwool / Mineral wool or oven or engine bay insulation would help.
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Old 12-21-2020, 08:50 PM   #44
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This is kinda off topic but what do insurance cos. feel about wood burners or is it best to keep it on the down low?
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Old 12-21-2020, 09:30 PM   #45
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Quote:
Originally Posted by cafspecdel View Post
This is kinda off topic but what do insurance cos. feel about wood burners or is it best to keep it on the down low?

The 3 different RV/Bus insurance companies we've dealt with, Progressive and National General and Farm Bureau, all asked the same two questions about high risk items... "do you have a roof deck?" ... and ... "do you have a wood stove?"
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Old 12-21-2020, 09:58 PM   #46
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Join Date: Jan 2019
Location: Philadelphia
Posts: 6,995
Year: 2003
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Chassis: CE 300
Engine: DT466e
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I asked my Allstate agent about wood stoves and roof decks and it was a hard no to both (in fact no solid fuel stove is allowed, so no coal or pellet stoves either). Discovery of these (like, during a claim investigation) would be grounds for annulment of the policy (which means retroactive cancellation - you'd get all your paid premiums back, at least).

So it's better to not have one at all than to keep it on the down low.
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