61.   If your roof is steep, you may be able to work on it using brackets called roof jacks that hold boards to use as platforms.

62.   If an old roof is basically sound, roof replacement is usually done by nailing new shingles over the old ones.

63.   In cases where a slate roof is beyond repair, replacement may be necessary.

64.   In Paris, the roofs are slate gray.

65.   In several eavesdropping sessions near the model, the closed roof was the first thing people were heard to comment on, almost invariably with dismay.

66.   It soon filled with vendors whose roof was no longer the sky.

67.   Its roof is glass, for an open-air feel, but with automatic shades to keep out the sun.

68.   Its roof was a concrete ledge that extended about four feet from the edge of the highway.

69.   Like most fans, Deems said he enjoys the games more when the roof is open, but he understands why it has to be closed.

70.   Most houses in the North are built with snow in mind, and their roofs are steep enough to hold heavy weights or to allow snow to slide off.