Guest User
4/6/2010
Hi, My contractor installed a metal R-Panel style roof over 1x4 purlins over existing shingles on a hip roof. The top ridge has vented ridge cap, but the hip ridges are not vented. There is wide butyl tape running down the hip ridges with a ridge cap on top. My question is that since a substantial area of the roof surface peaks at the hip ridges, shouldn't they be vented just like the top ridge?
Ken Buchinger
NCI Building Systems, Inc.
4/7/2010
They can be. The key is to balance air intake at the eave with air exhaust at the ridge/hip.
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