"IMM" wrote in message
...

Did you read it? No. If they work in Florida they will work here. A
barrier under tiles is well a barrier under tiles anywhere.


Have to say, I'm in agreement with the other posters here. From a physics
point of view, putting a reflective material where no direct IR radiation
hits it is going to be of negligible use - also with tiles, they will
contain the heat for a good while, which will not help either. Putting a
thick insulating material under it will be a better option - be careful
there's enough ventilation though.

Now if you put tin foil on top of your roof tiles it WILL do an excellent
job!! Not so sure your neighbours or the local council will go with you on
that though after you blind everyone who passes by ;o)

Think of it like this - if you put spuds on the BBQ in foil, you'll burn
your hand off if you pick up the foil because the potato inside it is hot
and in contact with it. If you put a sheet of foil between you and the
flames, it will be a very effective heat barrier.


a