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cutting into ceiling joists??

12 years ago

I am trying to install a wall mounted stainless steel rangehood that will extend to the ceiling. My exhaust pipe needs to go through the kitchen ceiling and up 6 foot through the roof. Unfortunately, there is a ceiling joist directly in the path. The rangehood will be on a west interior kitchen wall between great room and kitchen, and the ceiling joists run north and south. Is there someway to sister the joints or strengthen them some other way so that we can cut a 6 or 8 inch pathway for the exhaust pipe without endangering the structure? Also, do you know if you would need a city permit for this work. Thanks

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