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66<br />

Overshot Roof<br />

Blowing Precipitation from this side is deflected.<br />

Falling Precipitation runs of the roof.<br />

Overshot Roof with Upstand<br />

Blowing precipitation from this side is deflected.<br />

Blowing Precipitation from this<br />

side enters building.<br />

Both falling and blowing precipitation is deflected from the building.<br />

The proper amount of clearance from the upstand to the open ridge<br />

allow for the continuous upward flow exhaust air.

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