In article ,
Steve wrote:
Hi. I've been adjusting the TV aerial on the roof. The roof ridge has a
row of half round tiles; the tiles are separated by about1 inch with
mortar in between.

I've noticed there are small gaps, around a millimetre, at the edges of
some tiles - the mortar has separated from the tile edges. They may
have been like this for some time or it might be because I disturbed
the tiles (walking/sitting on them).

The morter between the tles is in good condition and very hard to break.
I tried chipping away as I was thinking about cutting it back enouigh
to try pointing, but it is really tough.

Should I do anything about 1mm gaps? If so, is there a good way to fill
them without cutting back the existing mortar?

Cement mortar is a poor material for ridge tiles - as the roof always
moves relative to them. And the stronger you make it the worse the
problem. Use a good non setting mastic to fill any gaps. If doing again
use lime mortar.

--
*Stable Relationships Are For Horses.

Dave Plowman London SW
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