"Andy Hall" wrote in message
...
On Thu, 19 Feb 2004 21:07:18 -0000, "IMM" wrote:



Dig a trench around the garage and insert foam insulation against the
garage
walls and then back fill.

That would take a hell of a lot of those cans though, wouldn't it?

This will prevent the cold earth acting as a
large heat sink extracting heat from the garage walls and floor.

The heat would still travel downwards though.

In winter the frost line is about 2 for deep. The foundation walls will be
deeper than that. The earth directly beneath the garage will be warmer than
earth at the surface.

This is
also a very good idea with the main house too.


Exposing the foundations and putting foam round them..... Hmm.

Common in the USA.

In Sweden and the USA what is becoming common, is to have an "umbrella" of
foam insulation around the house, starting just below the surface at the
walls and slanting away from the house up to 30 foot away. Rain runs off
this and away from the house protecting the foundations, and the earth under
the umbrella will be cool in summer and warm in winter. If you have a
basement the benefits are even greater. All you need is to rent a Bobcat.