Which height is appropriate for vent termination above the roof?

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Multiple Choice

Which height is appropriate for vent termination above the roof?

Explanation:
The appropriate vent termination height is a minimum of six inches (150 mm) above the roof. This height helps keep the vent clear of roof runoff, snow, and the elements, reducing the chance of water or debris entering the vent and ensuring proper operation. Lower heights (100 mm or 120 mm) are too close to the roof surface and risk intrusion, while a height like 180 mm is higher than necessary for the standard requirement. Therefore, 6 inches above the roof is the correct choice.

The appropriate vent termination height is a minimum of six inches (150 mm) above the roof. This height helps keep the vent clear of roof runoff, snow, and the elements, reducing the chance of water or debris entering the vent and ensuring proper operation. Lower heights (100 mm or 120 mm) are too close to the roof surface and risk intrusion, while a height like 180 mm is higher than necessary for the standard requirement. Therefore, 6 inches above the roof is the correct choice.

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