07.55.00 Protected Membrane Roofing
07.55.63 Vegetated Protected Membrane Roofing
07.55.51 Built-Up Bituminous Protected Membrane Roofing 07.55.52 Modified Bituminous Protected Membrane Roofing 07.55.53 Elastomeric Protected Membrane Roofing 07.55.54 Thermoplastic Protected Membrane Roofing 07.55.56 Fluid-Applied Protected Membrane Roofing 07.55.56.13 Hot-Applied Rubberized Asphalt Protected Membrane Roofing 07.55.63 Vegetated Protected Membrane Roofing