In a message dated 7/27/98 12:35:10 PM Eastern Daylight Time, [log in to unmask]
writes:

<< From the appearance (or dissappearance) of many slate roofs in my area, it
 would appear they have been at it for quite a while. >>

A church I was asked to look at, on the North Shore of LI, had a failing
asphalt shingle roof. Beneath it was a perfectly good slate roof that had been
power nailed through to install the asphalt shingles. I advised the church
that they had taken a 50 year roof and with considerable expense turned it
into a 10 year roof. All for want of an owner aware of slate repairs and an
honest roofer experienced with slate.

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