Doublewide Addition?

NorthstarNC

First off, I did a search, and didn't really find anything, and I wasn't sure which trade specific forum to post this.

That being said, we are super slow here in the Southeast, so I went to look at a job in which the customer wanted an 8' extension built onto their existing doublewide mobile home. The mobile home has a permanent brick/block type foundation. I don't see why this would be very difficult, aside from matching up the material, as I know mobile home manufacturer's use some weird material. Has anyone done such work, or know where I could find out more about what I can expect or any pitfalls to look out for. I've never even been inside the walls of one of these things.

Thanks!

daystoshort

its an easy job to do the new addition needs to be self supporting becouse doublewides are an engineerd and will not take extra weight on the roof.just build it as if you were building a house.with trusses and when tieing into the roof put in an LVL for the ridge it will take some of the load off the homes roof.good luck.

wizendwizard

I have done a 16'x32' addition on a mobile home. The only way to do it is to build it just as you would a house. Since it is on a block foundation it falls under real property laws and must be treated as such. There will be no way to match the materials. But, why would you want to?

Just build it like you would build a house. Be sure to tie the roof in as with any addition. If you are worth your salt you should be able to figure out the rest.

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Kgmz

As posted above do not have any load on the mobile home.

Now check and see if the mobile home is really sitting on the foundation walls.

Around here mobile homes with block or concrete foundation walls, the foundation walls are only really there for looks. The mobile home is actually supported by its trailer frame which sits on blocks that then sit on concrete ribbon strips. The mobile home is then strapped down to the ground. Mobile homes are not designed to be supported by their edges, only be the frame which is inboard from the edges a few feet. This is why you cannot put any load on the exterior walls, roof.