We recently had vinyl windows installed. We have cedar lap siding and the old windows were aluminum. To install the new, the siding was cut, the window put in, vycor over the flanges, then 1×4 cedar trim around the edges. The lap was proud, so it was cut down part way to let the trim sit flush with the outer edge of the window. That leaves a small gap between siding and trim. Little triangles of gap if you will.
Should those gaps be filled with backer rod and then caulked out? Seems like an entry point for water to me.
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Bumpity bump?
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I can't quite picture what you have, but if there is a point of water entry, by all means caulk to keep it out.
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Im having a hard time pictureing this also. Did they put the window trim on top of the siding? So now you have gaps between the back side of the trim and the thin part of the trim.
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Yes, that is how it was done. They cut down the siding to make the trim flush with the vinyl, but its not all the way down onto the thin ends of the lap. Thus, a series of gaps. Those who can make you believe in absurdities can make you commit atrocities- Voltaire
Sounds like they should have backed up the joint with tarpaper ot vycor, and then trimed a J-piece to the trim
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Edited 7/1/2006 11:08 pm ET by DonCanDo
Interesting. Alas, no J. Caulk it out or not? I can see no alternative now.Those who can make you believe in absurdities can make you commit atrocities- Voltaire
Caulk it. I know what you are describing, they shaved down the laps but not enough right?
Recut the siding and sink the trim in to the sheathing, or re-cut the siding and add a wider back band, like a 1x2 around the trim frame.
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Yeah, seems like this is compromise no matter how you do it. Either the window is flush with the trim above the siding and you caulk, it its below and the window is proud.Those who can make you believe in absurdities can make you commit atrocities- Voltaire