I received your favor of November 25, and have made inquiries, as you desired, concerning the copper covering of houses. It has been used here in a few instances only, and the practice does not seem to gain ground. The copper is about the thickness of a common playing card, and though a dearer metal than lead, I am told that as less weight serves, on account of its being so much thinner, and as slighter wood-work in the roof is sufficient to support it, the roof is not dearer, on the whole, than one covered with lead. It is said that hail and rain make a disagreeable drumming noise on copper; but this, I suppose, is rather fancy; for the plates being fastened to the rafters, must, in a great measure, deaden such sound. The first cost, whatever it is, will be all, as a copper covering must last for ages; and when the house decays, the plates will still have intrinsic worth. In Russia, I am informed, many houses are covered with plates of iron tinned, (such as our tin pots and other wares are made of,) laid on over the edges of one another, like tiles; and which, it is said, last very long; the tin preserving the iron from much decay by rusting. In France and the Low Countries I have seen many spouts or pipes for conveying the water down from the roofs of houses, made of the same kind of tin plates, soldered together; and they seem to stand very well.
SOURCE: William Temple Franklin, The Private Correspondence of Benjamin Franklin, Volume 1, p. 12
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