How Many Tons Of Pea Gravel Archive Ask Me Help Desk

2004105the gravel used for a tar paper roof must be of a special nature and be prepared for the purposehe size of its grains must not exceed a certain standardsay, the size of a pea when found in the gravel bank, it is frequently mixed with clay, etcand it cannot be used in this condition for a roof, but must be washed.

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