Abstract: It is described herein a roofing insulation structure. The roofing insulation structure may comprise a first exterior surface and a second exterior surface opposite the first exterior surface. The first exterior surface may comprise a channeled profile having a plurality of channels. Each channel of the plurality of channels may have a depth of at least 1 mm, a width of at least 0.15 mm, and a ratio of depth to width in a range of between 1.01:1 and 7:1. It is also described herein a roofing insulation system comprising a plurality of the roofing insulation structures. It is also disclosed herein a method of manufacturing the roofing insulation structures. It is also disclosed herein a method of installing the roofing insulation system.