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TOPIC: Standing Seam roof

standing seam installation and ventilation

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I am looking at installing a graber post standing seam metal roof on my house. The one side is a 2/12 pitch and the other is a 4/12. I was told that I can install over the existing shingles with 1/2 insulation board underneath. My question is can I do this mainly because the 2/12 side has ice guard underneath the entire roof. That leads to a ventilation question. Currently I have non vented soffit with a ridge vent and gable vents and an attic fan. I was told to use chutes on the 2/12 side because 3/4 of the roof on that side is a cathedral ceiling which would allow for better ventilation.Also, vent the soffit on the 4/12 and eliminate the attic fan. Another insulation guy told me to leave the soffit unvented and just dense pack the cathedral using cellulose insulation. The result would be dead air space and no air movement which would not have a need for ventilation. Please help me make some sense of all of this. thanks
chad miller

1/3/2008
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I am looking for the same information. I am having installed standing seam roofing on foam panels. We were told by the company that we it is very important to vent through the fasia up into the space under the roofing. But that means cutting holes through the panels. I was looking for some other means to vent the fasia.
Guest User

1/9/2008
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Peg, I do not know enough to say for certain if it will work for you but there are some vented starter strips available which may be helpful. Todd Miller
Todd Miller
Isaiah Industries, Inc.

2/6/2008
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Chad, Based upon what you are telling me you definitely need the ventilation. Todd Miller
Todd Miller
Isaiah Industries, Inc.

2/6/2008
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