Date registered: Sep 2004
Vehicle: 1982 300SD
Location: Bel AIr, MD
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: why do people live in trailers?
My! Are you that thin-skinned? I do not believe I mentioned you by name as one who was exhibiting predudice? Only you know that. But some of the responses in this thread were certainly from an attitude of superiority.
As for asking questions.... That is generally a good thing. But there are various reasons for asking questions. One is simply seeking information. Another is to lead, or even manipulate a conversation to make a certain point. Around this forum, I tend to expect the later--perhaps I see that when it isn't intended.
There are various reasons why some people live in trailers. Some are financial, some are cultural. In some areas, they provide economical shelter. In other places they seem to be tonado magnets. Building Codes are enforced in various degrees by different governing bodies. Most Building Codes specify a wind speed for design pruposes. In the mid Atlantic, its 90mph. We rarely see winds of that speed, but if we do, many houses will fail. The code also address mobile home tie downs, and should apply the same wind speed. SOmetimes, local officials simply do not enfore the Code. I am currently involved with a builder who is being required by the Building Official to ensure that the roof trusses will not blow off in the 90mph wind. Every designer of roof trusses does calculation for the uplift produced at each connection pouint. Most of the trusses on the designs I recently reviewed were in the range of 100-500 pounds. This is easily restrained by simple metal clips tying the roof truss to the wall. I found a few trusses with uplift in excess of 2500 pounds! These require a much different approach. The point is that this information has been on the trruss drawings for years, and so far, I have only one Building Official, in one County that is requiring the uplift restraints to be reviewed. In the case of the houses I reviewed, it will probably add $200-$300 to the cost of each house.
The same thing applies to the uplift generated by the wind on trailers. There are Code requirements for restraining those forces. I think, perhaps, they are not being enforced--either thru concerns over the added cost, or simple ignorance. However, preventing uplift forces from wretching a trailer from its foundation in a tornado is quite another thing. Its probably an economic decision not to design for tornadoes. I have seen steel framed office building twisted on their foundation, so I doubt that ANY solution really exists.
Sorry for the ramble, but once I got started, it just sort of came out. All I am trying to say is that while we can, and should, improve the safety of trailers, we con't make them tornado-proof.