How many inches of flashing should there be at the bottom, lying against the roof, on all four sides?
Md Ariful Islam
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,
এমবিএ(মার্কেটিং)
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Dr. Md Rushad Rahman
এমবিবিএস(আরপিএমসি)
,
পিজিটি(মেডিসিন)
For a skylight or chimney on a composition roof, there should be 6 inches on bottom and sides, 9 to 12 inches on top.
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