Doctor Evil wrote:

wrote in message
oups.com...
snip
Deep foundatins are needed for rigid strucrtures:

Domestice building just does not need to be rigid

It does. British homes notoriously leak air like crazy. A ridgid
air-tight structure means you control the ventilations instaed of having it
by excessivly by default. 40% of heat loss ia via air leaks.

These days you will not get away without a rigid foundation, so why all this
lime mortar, that is good for old building that move on poor foundations,
but pretty inappropriate, and expensive, for a modern building.

Under current building regs.
Regulations for "one size fits all", whether you are building on
swampland or solid granite isn't actually going to lead to
cheap buildings.

A rational approach accepting limited movement in a structure, where
it will not cause it to fail, and building regs that reflected this
could make buildings cheaper.