To repair a broken shingle, slide a piece of metal flashing beneath the shingle and cement the two together with roofing cement.

I glanced at the roof and saw the hole the thing had made, edged by the ragged, broken shingles that had been displaced when the machine broke through.

To install the patch, brush the area beneath the broken shingle free of dirt and coat it with roofing cement.

I have some old broken shingles, and I need to get them replaced.

Slide the flashing into place beneath the broken shingle until it rests against the nails securing the shingle just above its vertical slits.

However, to fix torn and broken shingles you must use nails.

To quickly repair a broken shingle, slide a piece of metal flashing or aluminum siding beneath it and spread asphalt roofing cement liberally between the two.

Then slide the piece upward, beneath the broken shingle, until the upper edge of the metal is stopped by the nails holding the top edge of the shingle in place.

Score along the protruding portion of metal with a nail or awl, using the bottom edge of the broken shingle as a guide.

To the shore the ship came and strode upon the sand, grinding upon the broken shingle.