Is This Right?

Had a customer ask me to replace some exterior trim boards on their house because the window installers installed damaged boards. Why they didn't have them fix it, I don't know.
Anyway replaced one, no issues. Took the next one off and encountered something I've not seen before. I'm fairly new to the industry and don't do a whole lot of this type of work so maybe this is common, I don't know. Is this window installed properly? These windows are brand new. Seems to me you shouldn't have to alter the trim board in this way to get it to fit. Is the flange out too far?

Peel back the flashing lets see, but it does look like the flange is sitting proud.

So that's a rabbit along the trim board so its sits flat against the house ?, if you can call OSB trim board.

I wonder are they double pane and thicker framed than the original windows and the sheetrock needs cutting back ?.

Not unusual, the rabbet may be there so the trim clears the flange and sits flat.

Tom

I understand why they did it. My question is, is there a reason why the flange sticks out so far?

The flange does look like its sticking out more than it should be. Like Sunkist said maybe the new window is thicker. Is it hitting the liner on the inside and not allowing the window to seat properly? Did the old window have silicone behind the flange and the installers just went over it?

If you look at it, you'll be able to see if and why the flange is sticking out and that will be the reason the flange is sticking out.... Peel back the membrane and poke your head inside.

The rabbet was the right way to address it if the window has to be like that for some reason.

We can't see underneath the tape anymore than you can from that pic... I tried using these, but I guess I must need new ones as theese weren't any help...


If you really want to know, you know what you need to do... just be sure you have replacement tape on hand in case...

If I had to guess from here, probably a retrofit of a sill or previous repair that didn't go so well and the trim was a workaround...

Are you concerned about the existing nail holes in the flashing membrane, and the new ones when you install the "trim"?

I understand that there is engineered "OSB" trim for exterior work, but that looks just like regular OSB ripped into widths for trim, which is concerning. What type of trim are you putting back?

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What about drainage? Typically there are places in the bottom to drain any water that accidentally gets behind the flashing.

It's engineered. LP Smart Trim. I was just showing the reverse side to show the rabbet they cut to get it to fit around the flange.

It’s probably LP Smarttrim. That mangled piece is the back side.

In the bottom of what?

I was subbed for this job and was only told to replace this piece of trim and one other.

Exactly. I was showing the rabbet they cut.

Looks like the window is installed over the top of the smartside panel.

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So really what's the point of this thread? You're not going to investigate nor fix it correct?

Just trying to learn and get feedback. Sorry to have bothered you.

looks like quite a mess....

flashing tape not installed correctly....

Unless you're fixing it the only thing you'll learn is that it's a messed up window installation.

Which is what I set out to discover in the first place. Hence the title of my thread. Thanks for contributing.

Rabbet cut to accommodate flange and fasteners. You could also hold the outside of the trim away with screws left proud under the trim, and fill the gap with sealant.


Either Of those two ways is better than nothing.


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thats not a good idea to cut the wood like that. they could of at least primed the backside. definetly would void the warranty.
should have added material to the other side instead of rabbet on the inner edge. perhaps the old flanges are still in place. you'd have to peel back the tape to find out.