I bought a house recently which had a lean-to shed attached to it. The shed has a single pitch roof which butts against the house
The existing roof was corrugated fiberglass (crap) screwed into corrugated closure strips on the purlins.
Despite it being 100% within my capability to DIY this, I hired a professional because I wanted a warranty. He has just completed the installation half an hour ago.
He used R-Panel metal roofing, and instead of pulling up the corrugated closure strips, he just left them and screwed the R-Panel roofing down through them. This has resulted in numerous screws which are visible under the roofing. All screws catch wood, but this still seems like shoddy workmanship, and he should’ve pulled these closure strips off so that the roofing sat flat onto the purlins. I paid him over $100/hr in labor to do this 3hr job.
Aside from just feeling slighted because someone half-assed the job I paid them for instead of spending an extra twenty minutes pulling up the strips, should I be concerned about leaks? Would any of you do something like this?
Interested in any feedback. Thank you in advance.