27 Jun '12, 6pm

How to ventilate a hip roof #green

How to ventilate a hip roof #green

We are going to be replacing the roof on our house as part of a project to make the house more energy efficient as well as an addition and remodel. I live in NJ - a little bit north of central, so we have pretty good swings in climate between summer and winter. The house has a shallow hip roof, and the house is 42' wide and 26' deep. There are nice large overhangs at the eaves, and we will be putting in lots of venting there, but the question is what to do at the top. There is an old existing power fan, two passive vents and a ridge vent. My guess is that the ridge vent is not very effective on it's own due to it's small size and the pitch of the roof, but I also think that the power fan is probably being short-circuited in it's effectiveness because of all the upper passive vents.

Full article: http://www.greenbuildingadvisor.com/community/forum/energ...

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