This project included complete (22,859 SF) roof replacement at a Cancer research facility at Purdue University. The existing roof consisted of an IRMA system with an additional ballasted 45 mil EPDM membrane. The building design was intense because of the number of penetrations on the roof. The new roof system is a 2-ply modified bituminous roofing membrane system that carries a 20-year manufacturer weathertight warranty. On the roof were multiple penthouses that received standing seam metal roofs which also carries a 20-year manufacturer weathertight warranty.