On Tue, 8 Jun 2004 12:20:03 +0100, Philip Stokes
wrote:

I am currently considering replacing a nearly 50 year old precast
concrete single garage with a double garage of similar construction.

I am however, concerned about the possibility of condensation,
particularly as my main reason for replacing the garage is to enable me
to house a (valuable to me) classic car, that is currently garaged
elsewhere - as well as my everyday vehicle.

I have read various comments in archived posts regarding these type of
garages, but I have to say that my existing garage, which has a flat,
corrugated asbestos panel roof, has never suffered from condensation,
and always been quite dry inside, although a couple sections of the roof
are now leaking at joints when it rains.

I have been looking at the Compton and Mayfair ranges of garages. I am
inclined more towards the Compton range purely on the basis that the
range of options available, including door sizes and security options,
is more comprehensive than the Mayfair range.

snip

circulate air within the chamber - the theory being that the air within
the chamber is kept above the dew point, preventing condensation on the
vehicle within.) I have had this chamber for nearly three years and I
have to say it performs brilliantly. I will still be using it within the
new garage.

I would appreciate any comments on the two choices of roof construction,
particularly from anyone who has experience of either type of garage,
and also the likely effectiveness of my proposed use of fans to draw air
through the building.

I know the erection of the garage itself is not strictly a DIY question,
but I cannot afford to pay a builder to construct a brick built garage
(around 35-40,000 pounds in this part of the country!) and I have
neither the time or bricklaying skills to attempt it myself.

All thoughts greatly appreciated.

Phil

I have/had a Compton one for some years, single with no door or window
just the two part metal front door and a metal sheet roof.

The location meant it would have been less secure with extra windows
and a door etc.

The roof gets some condensation on it which tends to run so far then
drips onto the car etc. The roof now has some "white" calcium type
marks on it but it's still water tight and in one piece etc.

Only "mistake" was to lay my own slab which was just about ok but they
said it was out a bit at one end so wouldn't use it without them
putting another lay on top of it due to the guarantee they offer etc.


Mark S.