31.   Suppose you want to put on an entire roof of new shingles?

32.   The first and easiest is to sit back and wait for the new shingles to weather.

33.   Then insert the new shingle.

34.   To install a ridge vent, bring the new shingles up to the ridge.

35.   Trim a new shingle to size, then tap it into place.

36.   Yes to new shingles.

37.   Work a new shingle back in place under the overlapping shingles, fasten it with galvanized roofing nails and seal the heads with cement.

38.   You can glue in the new shingle or nail it.

39.   You can then drive in new nails after the new shingle is in place.