Provided herein is relatively thick ionomeric sheeting that can be taken up into a roll and supplied in continuous form. Also provided herein are methods of manufacturing rolls of relatively thick, continuous ionomeric sheeting. Further provided herein are methods of producing glass laminates, wherein the relatively thick ionomeric sheeting is not conditioned to reduce curvature prior to stacking the pre-press assembly. These continuous rolls eliminate costly cutting and stacking steps in ionomeric sheeting that is intended for use as interlayers in laminated structures, for example safety glass and photovoltaic cells.