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Old 08-23-2009, 04:49 PM   #1
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best caulk for flashing

the asphalt roof on my garage is leaking. i noticed that there is cracking between the flashing and the roof. Should i use silicone, butyl rubber, or blackjack roof repair stuff? If silicone, what kind?
I also ned to caulk around my chimney flashing--between galvanized and masonry

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Old 08-23-2009, 07:06 PM   #2
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best caulk for flashing

i would go with a polyurethane

just make sure the flashing is not loose or cracked

the sealant should just be used for secondary protection
it should not be the primary waterproofing

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