A system includes a plurality of a clip, the clip comprises a securing mechanism, a first side, a second side, a bottom end, and a top end. During installation of an insulation system a plurality of the clip are coupled to a support beam and disposed within a plurality of notches of a second insulation board. The plurality of clips further include a width that is substantially equal to a width of the plurality of notches such that during the installation of the insulation system the plurality of clips are disposable within the plurality of notches to allow a second side of a first insulation board to contact a first side of the second insulation board and the securing mechanism secures a back surface of the first insulation board against the plurality of clips.