Q:

What is a range hood roof vent cap?

A:

Quick Answer

Range hoods vent smoke and grease through duct work extending outside the roof with a vent cap covering the end to prevent rain from entering the duct and draining onto the range. The roof vent cap should also have a damper to block return air when not in use.

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Full Answer

Depending on the path available for duct routing, sometimes the range hood is vented through an external wall. In this case, the vent pipe still must have a cap to prevent moisture and debris from blowing into the open duct. Recirculating range hoods or duct work that terminates inside of a building do not clear the kitchen of smoke and grease.

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