Anyone? I'm really stymied!

Gotcha. The windows are properly flashed (that was a fight that you helped me with last year!) and now the siding is installed. We are discussing caulk where the window meets the siding.

Here's a pic. This window got caulked all the way around before I could ask him to pause.

• Sorry for not recalling but the details are important and quicker to ask in this case than to hunt. What type of siding? Generally not at the bottom however you do not caulk as if water gets in it needs a place to be able to escape. Again this depends allot on the siding and whether or not you have a rainscreen or drainage plain type system.

For that application I would say no caulk at the bottom. You may get some that would say yes but I am pretty dam sure they would be incorrect. Water must have a means to escape.

Thank you! We do have a rain screen system (something else we had to fight for!). Should we caulk the top? I thought that integrity had integral drip caps but I don't trust my memory.

If you have a rainscreen, I would caulk it. You dont want water rolling off the glass behind your trim and siding, even with a rainscreen. That is an interesting detail with the wood trim on top of the cap flashing though. Is the painted brown piece some kind of flashing?

If the sill pan drains to the top of that flashing, you probably shouldnt caulk the piece of wood sitting on top, as it could trap water.

I would caulk the horizontal gaps below the brown flashing though as they look more likely to admit water than let it out.

Definitely caulk trim to window and siding to trim on the sides and top. Definitely do not caulk where siding lands on Z-flashing at the head.

If there is trim under the window you have to caulk it to prevent water from getting behind the siding unless there is flashing behind the trim. It's difficult to understand what the horizontal thing is under the trim. The usual detail is a projecting sill with a drip under the window with no caulk. This is a different detail.