Insulating an aluminum cargo trailer
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I am going to insulate an enclosed cargo trailer and I am pretty sold on the expanded cork for the project. My question is what other products should be applied in addition to the cork insulation…do I need a heat shield of some sort between the aluminum siding and the cork and then on the inside, do I need a vapor barrier between the cork and the inside pine paneling?
Any advice is greatly appreciated.
Cheers,
Ken
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Replies
Ken,
知道您的气候区将很有帮助（假设该拖车将停放而不是向北到南到北）。
I'm not sure that you have thought this through. If you have thought this through, tell us more about your plan.
1. What type of adhesive, if any, will you use to attach the cork to the aluminum?
2. Is the aluminum curved?
3. How thick is the cork?
4. What is your plan to handle the expansion and contraction of the aluminum?
5. Will this trailer have electrical wiring? If so, where will you run the cables?
6. Will you be installing studs or other wood framing?
7.您正在考虑哪种类型的内饰材料？
感谢马丁。
I'm just in the beginning planning stages. The trailer will be primarily in the climate zone 3 - western Oregon. The plan is that it will primarily serve as a storage unit for some stuff, but be ready for me and my son to hook it up to the truck and basically use it as a hard shell tent for weekend camping trips. Right now there is no desire to make it fancy, just want it to hold heat and keep the rain out. Just throw our camping cots in there and stay dry.
1.我不知道粘合剂，我不确定铝和软木塞之间是否需要有一些东西 - 夏天它会变得非常温暖。我正在考虑铝上的Dynamat Superlite，然后是软木塞，但我对任何建议都开放。
2. The aluminum is curved in the corners.
3.我在想2英寸的科克。
4. I don't have a plan, open to suggestions.
5.最小的电线，刚刚计划在我们的LED营地灯笼上进行光线。有一些现有的电气亮起。如果我要运行灯，我会放一些弹性导管来运行电动。
6. It has 1/8 in plywood now, I was thinking of replacing that with 1/8" FRP (fiber reinforced plastic).
7.我打算用凯利·莫尔（Kelly-Moore）的durapoxy涂上侧壁和屋顶镶板（除非我买了frp）。
同样，目标是将货物拖车的主要目的保留为货物拖车，但在夏季，可以用作露营的一种硬壳帐篷，而不是对货运拖车进行完整的露营车转换。我担心水分和霉菌生长，我不想做任何会导致这种情况的事情。
Ken,
沃尔特给了你好的建议。对您成功的明显障碍是（a）我怀疑2英寸的软木塞是否可以符合曲线（您可以确定我的直觉是否正确，是否有一些实验），（b）您需要提出一个结构您可以将内部饰面材料（FRP）附加到其上。
My guess is that you are going to end up with some type of thin (flexible) "rigid" foam, followed by framing materials (maybe 1 1/2" by 1 1/2"), with spray foam between the framing, followed by your interior finish panels.
You might want to look for a web forum for Airstream trailers.
OK, I saw another post about polyester insulation, but it looks like no one manufactures it any longer. Are you aware of any?
Ken,
There used to be three brands of polyester insulation available in the U.S.: Dow SafeTouch, EnGuard insulation, and Rtica insulation. All three insulation products have been withdrawn from the market due to poor sales.
Aluminum is a very good conductor of heat filling the voids in a aluminum structure with insulation is a waste of time and money.
The most important detail in this project will be eliminating every thermal bypass. This is to say no aluminum part on the inside of the structure is connected to any aluminum part on outside of the structure without a thermal break. So you need to build a new self supporting trailer inside the trailer and fill the gap between them with insulation.
Walta