A couple of years ago I undertook repair to a large felt roof at my house as it was cracking in places but not leaking. I applied two coats of Bitumen primer and then one coat of Bitumen paint with a second coat on joins and high water areas such as under the guttering etc. I used an entire 25 litres of the bitumen paint which gives you an idea of the roof space.
As the weather has improved I wanted to re-apply the bitumen paint to keep it performing well.
Questions: Is it possible to re-apply bitumen paint over older bitumen paint? Would I need to re-apply the primer or anything?
Hi intarsia, If your bitumen paint is solvent based you will probably be ok with a clean with a stiff brush only. If it is waterbased you will probably need to use a primer. Have a look at the instructions on the tin. Regards S
Thank you for the response, I've checked with the manufacturer and they've confirmed it's solvent-based. I will take your advice and re-apply in parts where required. Thankfully there's minimal moss build-up and I've maintained the roof periodically by gently brushing it clean.
Hopefully this will continue to prolong the life of the roof.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!