The ornamental design for an insertstrip for shingledroofs, as shown and described.
FIG. 1 is a top perspective view of an insert strip for shingled roofs, showing my new design.
FIG. 2 is an enlarged view of the insert strip for shingled roofs shown in FIG. 1.
FIG. 3 is a top plan view of the insert strip for shingled roofs shown in FIG. 2.
FIG. 4 is a bottom plan view of the insert strip for shingled roofs shown in FIG. 3.
FIG. 5 is an enlarged left end view of the insert strip for shingled roofs shown in FIG. 4; and,
FIG. 6 is an enlarged right end view of the insert strip for shingled roofs shown in FIG. 1.
The dot-dash line in FIG. 1 represents the designation of enlargement views and forms no part of the claim. The evenly broken lines represent the sections from which the enlargement views have been cut from FIG. 1 and form no part of the claim.