what roof coating for old marley tiles

[bsffamily]

Hi Guys,
been asked whats the best roof coating for an ageing marley type tile roof and indeed what wisdom there is in coating a roof with water reppelant coatings.
The build was sometime in the 70's and houses in the same estate are having their roofs replaced but the owner has had a few folk in who suggest the roof is still good.
hes asked me to find out if there would be any benefit to coating the tiles to delay the expense of replacing tiles with new.
any ideas as to efficacy of these coatings and which would be best if its a goer.

cheers simon

 

[Nige F]

TOTAL WASTE OF MONEY . The roof is good . That`ll cost you £50 for my survey

 

[Alastairreid]

Scroll to the bottom of the page there's dozens of horror stories regarding roof coatings.

 

[Mw Roofline]

if its a goer.

 

[BethesdaSlate]

Don't do it!!

 

[bsffamily]

well chaps there seems to be a consensus developing here.
thanks very much indeed.
i shall pass on the info.