notch 116 defined by a generally vertical edge portion 116 v and a generally horizontal edge portion 116 h that intersect vertical slot 112 has a height measured from a bottom edge 111 b of the rolled sheet in a dimension generally parallel to the pole that is substantially the same as that of the generally vertical edge portion 116 v of the corner notch in the exemplary embodiment the tube like structure also includes pins 118 fig4 shows that one of pins 118 being used to removably attach an insulative blanket 410 blanket 410 in a coiled and generally fixed position relative to the tube like structure pole guard 110 the vertical slot positioned between the first vertical edge and a vertical edge of the corner notch wherein the vertical edge 116 v of the corner notch and a portion of the first vertical edge 111 v cooperate to define another vertical notch 116 when the sheet is rolled around a pole the width of the vertical notch 116 between vertical edges 111 v and 116 v shown best in fig1 b and 2b is variable depending on how tightly the sheet is rolled around a pole tube like structure 110 is formed by diecutting a sheet of fiberglass material to include the vertical slot and the corner notch or by molding an insulative material.