On Tue, 25 May 2004 15:13:40 +0100, Adam wrote:

Maybe it's possible that one of the tiles has also slipped then,
although I can't see anything wrong from the outside.

As other have said the felt is only secondary but when it gets a hole
all the tiny leaks above that point come through in that one place...

It does only tend to leak at certain times, presumably when the wind
is blowing in the "wrong" direction.

A good condition slate or tile roof won't let in much but it will
particularly if there is a bit of wind behind the rain. Of course roof
without sarking has very high ventilation levels so will dry PDQ as
well...

As to fixing your hole. You need something water proof and moderately
tough and stiff. Heavy gauge poly sheet, opened out old feed bags are
quite good, provided they haven't any holes.

Idealy you need to tuck the poly under the batten below the hole and
bring it through the hole and attach it to the rafters 18" or so
above. Any water coming of the top bit of sarking onto the poly gets
channeled well down onto the lower sarking.

--
Cheers
Dave. pam is missing e-mail