Lean-to Roof Replacement

[GeneralMelchett]

Hi,

I need to replace the corrugated tin sheet roof on my lean-to wood shed. The old tin is off and the mortar flashing has come away too. I want to replace the tin with bitumen sheets but am not sure if a mortar flashing would be appropriate, or if I would have the skill to do it. I have seen a PVC corrugated flashing which I guess you just stick to the wall but this wall is a textured render which may be problematic? Would appreciate some thoughts and advice.

Thanks,
GM

 

[noseall]

I want to replace the tin with bitumen sheets

The corrugated bitumen sheets are as low end as you can possibly get. Make sure you introduce enough purlins in the roof frame to prevent warping.
Mortar fillet pointing will probably last as long as the sheets themselves.

 

[GeneralMelchett]

Thanks Noseall, sounds like you are advocating I replace tin sheets with tin sheets and redo the mortar flashing?

GM

 

[Leofric]

Plastisol coated corrugated metal sheeting to profile and colour of your choice.

 

[noseall]

Thanks Noseall, sounds like you are advocating I replace tin sheets with tin sheets and redo the mortar flashing?

GM

Corrugated bitumen sheets coupled with a mortar fillet is as low end as you can get. The problem with low quality products is the effort required in order for them to be lasting.

You would be better off spending a few extra quid on something more robust. Yes, tin sheets and lead springs to mind.