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Old 08-04-2012, 08:41 PM   #1
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Replacing flashing at weatherhead mast


If the flashing for the weatherhead on the roof is starting to deteriorate and is bulging at places (not flat anymore), what's the appropriate and/or easy way to fix? Weatherhead and utility cables are fine.

Disconnect weatherhead and electrical wiring connection there to take out the flashing (it's slide in top mounted, pipe flashing), and reconnect back w/ new flashing? But assume this may have to involve electrician? Or can roofer do it all? And need turn off power at utility to replace?

Or is the recommended option to leave weatherhead in place and un-nail and cut up the current old flashing then put in a new (2 piece) flashing that doesn't require dismantling the weatherhead? If going this route, how should the flashing be cut, with what? Some special pipe/flashing/sheet metal cutter, or using some type of saw? The top of the cone part of the flashing does touch closely to weatherhead pipe, so I'd want to be sure of cutting that flashing carefully.

Would like to know in case I do the replacement myself, or at least know what to expect when I have a roofer, etc. do it for me (rather than be clueless if what they're doing is right or wrong).

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Old 08-04-2012, 08:47 PM   #2
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Replacing flashing at weatherhead mast


It's done with a split or two piece unit.
I've never seen them in Lowes or HD. A real roofing supply should have them.
I order mine on line.

This is just one of the many differant styles.
http://www.goldenrulefasteners.com/R...al_Zipseal.php

And no need to mess with the power lines.

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Old 08-05-2012, 12:41 AM   #3
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Replacing flashing at weatherhead mast


Thanks Joe. But any suggestions as to how best to remove the improperly installed flashing on the weatherhead (currently a one piece)? Doing it the original way the flashing was installed would mean having to dismantle the weatherhead. I've never removed one so don't know what's the best way to do so including how best to cut it up.
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Old 08-05-2012, 11:04 AM   #4
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Replacing flashing at weatherhead mast


Remove the shingles, Remove all the nails holding it down, slide it up the mast enough to cut one side with a pair of tin snips, twist it off.
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Old 08-05-2012, 12:24 PM   #5
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Replacing flashing at weatherhead mast


Goldenseal pipe flashings.

Check your local roofing supplier if they will deal with you.
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