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above. Look at the arrows, these pipes are disconnected and are capped off; therefore, the portions of the home heated via these loops will receive no
heat, a serious defect.These pipes were capped off because there were leaks in the copper pipes within the floor slab. The other pipes may also develop leaks because these pipes are embedded in the concrete slab
without any protective sheathing; the minerals in the concrete react with the copper pipes causing corrosion of the copper and eventual holes and leaks.
In general, the piping system was poorly installed,
there is a connection between the copper pipe and a black steel pipe without proper insulating material to prevent galvanic corrosion, and there are some other defects, but these are the majors. At the end of
the day, there are parts of the home that are unheated!
Improved installation techniques have been developed, for example, the use of plastic piping in lieu of copper piping; this eliminates the
corrosion problem with copper piping.
One consideration for homes with heated slabs on grade; if your home is located in an area that is susceptible to subterranean termites, heated grade slabs are a
strong attraction to termites.
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