SELF-SEALING ROOF SHINGLE AND METHOD OF PROVIDING ENHANCED SEPARATION OF SHINGLES FROM A STACK

摘要

A roof shingle of the self-sealing type which includes a self-sealing adhesive stripe on one surface is disclosed herein. The shingle also includes on its opposite surface, in alignment with the self-sealing adhesive stripe, an improved separating medium comprising sheet material, preferably polyester film, which is coated on its exposed surface with a predetermined amount of methyl naphthylene sodium sulfonate. When shingles of this type are positioned in an aligned stack or bundle, which is typical during shipment, the improved separating medium of one shingle covers the self-sealing adhesive stripe of an adjacent shingle for providing satisfactory separation of the shingles from the stack, especially at high ambient temperatures.