on the mfg chimney that sticks out of roof. The round insulated chinney pipe. Not the brick type but pipe type.
Question: How would one keep this from blowing off in a storm. Hurricane season is coming.
Right now all that holds is a clamp.
on the mfg chimney that sticks out of roof. The round insulated chinney pipe. Not the brick type but pipe type.
Question: How would one keep this from blowing off in a storm. Hurricane season is coming.
Right now all that holds is a clamp.
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Replies
There is available a clamp that is a ring around it with one, two or three conduit sized legs that can brace one off. Usually only used for taller ones on steepre roofs.
And I don't see that on yours. So I assume that your joint incorporates some sort of a clamp to secure it together. Some simply twist lock together and I add a couple or three or four of sheet metal screws to stabilize the joint. But I do not put those screws in a joint that is in the interior or attic space because they could void warrantee and allow leakage at the holes they make. I'm guessing your joint is about where the storm collar is.
BTW, Is your pipe a triple wall or a mineral fill solid pack type
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double wall with mineral. the clamp is just under the storm collar.
Looks like you've only got one 30" or 36" section rising above the roofline. Not usually a problem for wind damage. These pipes don't present very much sail area and a short extension like that shouldn't give you any grief until long after the roof itself blows off....
Twist-lock joints are pretty standard; I do like Piffin and run three sheet-metal screws through the joint to lock it in place.
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