Profile: Custom Metal Building Products manufactures & distributes metal building components and pre-engineered metal building systems. We offer exposed fastener panels and concealed fastener panels. Our aluminum windows are available in single hung and horizontal sliding models. Our pipe flashing is available in sizes to fit pipes from 1/4" to 26". We provide metal roofing for residential, retail, institutional, marine, aviation, commercial and agricultural needs. We also offer accessories including light transmitting panels, vents, louvers, fasteners, closures, tape sealers and vinyl back insulation.