Removal of Alluminum flashing and residual tar from brick

[njapaj]

Help ,

How can i remove the tar and tape still left on the wall from previous DIY botch repairs by previous owner?

Am having building works done and proper flashing installed - yet the old tape will show above the new roof line.

Any ideas how I can get rid of this sticky mess???

PS - our builder doesn't think an acid cleaner will do it, we're happy to spend some hours on it ourselves and save their expensive labour costs for 'proper' work.

 

[noseall]

White spirits readily dissolves bitumen based products.

I don't think you will have much joy with hydrochloric acid though.