can you paint bitumen corrugated roofing?

[kerrie]

Does anyone know if I can paint the under side of bitumen corrugated roofing sheets? I just want to lighten the room they are covering.
If so, what can I use?

Thank you for any help.

 

[flatroofer666]

you must 1st paint them with a very strong unibond wash to seal them then any good quality emulsion based paint...looks better with a couple of coats but dont forget unibond 1st

 

[kerrie]

Thanks so much for your help. Can you explain what you mean by a wash? Is it watered down unibond adhesive and sealer?

 

[JohnD]

or you can use spirit-based aluminium paint, or aluminium wood primer. the aluminium flakes form a mat as they dry to prevent the bitumen bleeding through.

I am very doubtful about the Unibond method because usually, if you do this to a wall and then paint it, the emulsion paint tends to peel or flake off.

 

[flatroofer666]

or you can use spirit-based aluminium paint, or aluminium wood primer. the aluminium flakes form a mat as they dry to prevent the bitumen bleeding through.

I am very doubtful about the Unibond method because usually, if you do this to a wall and then paint it, the emulsion paint tends to peel or flake off.

yes but a wall and a bitumen product are a million miles apart..