Attaching flashing to stucco/Dryvet

Old 08-27-21, 05:20 AM
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Attaching flashing to stucco/Dryvet

My flashing is pulling away from the Dryvet. It has small nails holding it. When I put the nails back in there is nothing for them to grab onto. I don't know where the studs are (my detector doesn't work through the
Dryvet) and the studs are metal anyway. What/how should I use to secure the flashing where it is loose?
Old 08-27-21, 02:59 PM
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That's a tough one. You will need to locate studs one way or another. If you need to make test holes, do it where the flashing is going to cover your holes. I don't know what kind of flashing you have but often on finishes like that you will have a termination bar... flashing goes under the termination bar. The termination bar is what gets screwed on to hold the flashing back, then the top of the termination bar is thick enough to get sealed (caulked) to the surface with a high performance UV resistant sealant.

You might also be able to locate the studs inside the house... then measure to the edge of the window glass or center of a window... then go outside and transfer those measurements over.

As for the fastener, you would want to use a long self starting stainless sheet metal screw, (hex head) which will drill into the metal stud. But you need to be conscious not to overtighten, as it will strip if you aren't careful. The screws will likely need to be about 2 1/2" or 3" long if you are going over Dryvit, since that system is a synthetic stucco over thick EPS foam.

You could also use long pole barn screws with the neoprene washer. Again, be careful not to spin them and strip the threads you cut in the metal studs.

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