exposure line

exposure line

An imaginary line drawn across a wood shake, dividing it so that the area above this line is the same area as that below it; the area below the line is that portion of the shake exposed to the weather.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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Insert two nails per wood shingle, 3/4 inch from each side, and 1 inch up from the exposure line. The exposure line is the location where the bottom edge of the shingle placed above will rest.
With shakes, between each subsequent course install an 18 inch wide piece of builder's felt, with the lower edge of the felt halfway between the next exposure line and the end of the wood shingle.
Chapter 31 Wood overhead structures
Comparing its 9-by-31/2-inch footprint to that of a conventional UV exposure line, CreoScitex said two or three TrendSetters may fit into existing space, providing speed and backup similar to a multi-imager Newsetter line.
Heat and light at Nexpo
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