Preformed walls instead of stud/sheetrock construction?

It has been around at least 20 years that I'm aware of. People are often reluctant to use "new" methods because they are different that what has been used for centuries. They are superior though.

SIPS, Structural Insulated Panels is the term to look for. An example is

In 1978, I worked for a firm in Southern Louisiana that made walk in coolers and freezers. One of the engineers there came up with the idea of making preformed panels that could be used in the housing industry.

IIRC, they were simple 2 x 4 construction skinned over with different types of coverings, both on the interior and exterior. They were then held in a hydraulic press, and a two element expanding foam was injected. The mixture had to be precise, as overfilling caused some of the presses to be blown apart, pulling the anchors from concrete floors.

All in all, about 30 houses were built with this construction, and they had a very good R value. They are not very advanced in nature, construction, or components. They locked together with the regular cam locks used in commercial refrigerated boxes. They also cam locked to the top and bottom plates.

Funny. I haven't really heard much more about these in the past 28 years until now.

Steve

Edwin,

I took a look at those sites. The first one had a nice video explaining how it works, very interesting. I'm going to give them a call for more info. I just wonder how they do plumbing and electrical, especially after construction is done.

-Jim

There is a sub-industry to provide the tools for working with those types of materials. One is

If I was building anew house today, I'g go with one of these methods. Construction cost is very competitive with stick built and thee is savings for years in energy.

Thank you. I called one of the companies that does the wood/foam sandwich type. They told me they put vertical channels every 16 inches on center and 2 horizontal channels in every panel. They are about

-Jim