In article ,
harry wrote:

I want a solar roof

so the top storey of my house becomes a roof
conservatory/greenhouse

You would have a major problem with the building regulations.

Good God, WHY? =A0It's nothing terribly out of the ordinary.

The biggest snag would probably be the thermal insulation properties
and having to make the building meet current regulations on heat
loss. But I agree it shouldn't be that hard. What might be a problem
is getting rid of the heat in the middle of summer rather than
keeping heat loss down.

It's soluble. =A0We did it in our south-facing conservatory.

This would be an incredibly expensive job to carry out too.

No more than putting any other kind of extra story on.

Large bits of glass are expensive, large double or triple glazed
units are very expensive.

True, but irrelevant. =A0Build it out of medium-sized, double-glazed
K glass.

Double glazed K glass is not even the equivalent of a single brick
wall.

Wrong. It's the equivalent of a cavity wall. Look it up. Also,
the inside glass of our conservatory stays at roughly the same
temperature as the inside of our cavity brick house walls.

This is getting ridiculous, and I shall stop posting corrections
on the grounds of reducing the boredom factor. The regular readers
will know who to believe.


Regards,
Nick Maclaren.