greg0rn
Republic of Vancouver Island
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Is anyone familiar with attic ventilation system? How critical it is to have one in a 5th wheel having wooden trusses in its roof?
Thank you for all replies.
Greg, Shirley, Misha (the dog)
2006 1 ton Dodge with CTD, SRW, extended cab, 4x2, short box, 3.73 LSD, J-brake, Superglide hitch, Prodigy controller, Line-x, Pressure-Pro.
2004 Citation Supreme 26RKS 5th wheel
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mwebber78
Maine
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Some of the higher end units have it and they sell it as critical on units that will see full-time or extended stay use. Makes perfect sense to me given the critical nature of ventilating your house attic, most contractor's follow a strict formula of square footage to total ventilation area.
If you plan on using a rig for frequent extended use you may want to consider a coach equipped with this feature.
Michael 
2 DD's and my DW 
6 Acre's in Southern Maine
2009 Crossroads Cruiser CF31SB
2008 Chevy 2500HD LT 4X4
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greg0rn
Republic of Vancouver Island
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Actually, my Citation Supreme 5th wheel has it installed. I'm just curious about what happens over there, in the attic. Most of us will never see the innards after a few years of being exposed to the elements.
I hope that someone with some practical experience dealing with roofs and so on will respond.
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mwebber78
Maine
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I would think it would work no different then your house. In extreme weather changes or humidity I have been up there and the vents move/circulate air. Do you have a specific concern like mold?
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charlan
On. ca
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I would think that vents are nessasary whether it's wood or aluminiom, mine has attic vents and I have aluminium trusses.
2008 LMM GMC 3500 SLT 4X4 HD LB Duramax 6.6 Turbo Diesel Dually
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Jim-Linda
Livingston, TX
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Actually, my Citation Supreme 5th wheel has it installed. I'm just curious about what happens over there, in the attic. Most of us will never see the innards after a few years of being exposed to the elements.
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Does your S&B have an attic that is exposed to the elements? Neither does your trailer.
Jim
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greg0rn
Republic of Vancouver Island
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mwebber78 wrote:.....Do you have a specific concern like mold?
Perhaps, or worse, like rotting trusses and plywood. It is a dead space there without air circulation.
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woodburner
Mentor Ohio
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Personally: the so called attic ventilation system offered on most coaches must be magic because there needs to be airflow to have ventilation and if they insulate these things to the R-values they publish it does not leave any room for airflow! Sounds like a lot of baloney to me. JMHO
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Jim-Linda
Livingston, TX
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There must be different "method's" for attic construction. We have a '98 Champagne 38', with the "attic". There are 5 vents on the roof to ventilate the space. No magic.
Jim
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woodburner
Mentor Ohio
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Exactly the point; there is no space!
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