I know there is no cure for a leaking roof other than removal of at
least a substantial part of it and rebuilding it. A Flat roof is about
the worst offender.

However since there may well be a seasonal need for help from fairly
competent commentatoes I have reposted this to UK's D-I-Y.

pandemonium wrote:
On Sun, 14 Jan:19:06 -0000, Flyiñg Ñuñ 2°°7 + wrote:

I noticed the kitchen floor was wet, one of the translucent false ceiling panels
appeared to have water resting on it's upper surface, ...about ½ a cupful
Small droplets were hanging from the plaster on the main ceiling where the
outside wall and kitchen extension roof meet.

It looks like there is a vertical join in the roofing felt that is supposed to seal
the felt on the flat roof to the original brick wall above it.

There is a small gap which faces the strong gusts over the past few days
I checked the bathroom above the kitchen to make sure that there weren't
any seeping pipes there.

But what to do next - the water droplets are no
longer forming, so I presume it is drying out.

Anyway, have you tried this stuff?

http://www.toughproducts.co.uk/prods...odID=88&gID=25

Just over a year ago my kitchen roof was leaking.

I managed to patch it using a piece of hardboard and then a liberal
application of the above product - I got it from B&Q for about £12.

I applied it during the rain (wet and dry application) at night and checked
it the next morning, finishing it off when I could see better.

That seemed to fix it and it held for a couple of months until I could
get a felt roofer in to replace the whole of the roof.

There are probably smaller tins available and it can be applied with a
paintbrush. Just don't try using it whilst wearing your Sunday best as it's
a bugger to get out of clothes!

My own twopennorth is that there is a tube of silicon mastic designed
for this sort of patch. It has a variety of solvents, including
keytones, that allow it to adhere to a large number of different
surfaces wet or dry.

I don't know how widely available it is but the mastic gun application
means that you can get it into the places that need it and not on your
skin -to which it will stick like STAB. (As it will to any garments and
etc.