Flat roof - best sealant recommendation?

[RedvGreen]

Hi all,

Since we are due some good weather allegedly, our flat roof garage and back room need redoing. Have looked at felt, and i believe it simply needs a coat of sealant paint which will fix it up until such a time as we can afford to get it pitched.

What I don't know however, is what brand is suitable and how effective it is?

 

[RedvGreen]

Looking at various things for our shed at the moment.

Looks like Isoflex is very highly rated. Not cheap, but apparently works really well.

Looks solid. Only downside is the stipulation 'all surfaces to be coated must be clean' ...