Threshold problem- EIFS with prehung door

[TXNinAZ]

Hi all. Can’t find a suitable answer on the webs so hopefully some helpful insight from you all will solve this.

New shop has 2x6” walls with 1-3/8” EIFS (foam and stucco). This requires installation of a stop around door openings for the foam to **** against and for nailing on the trim board (I ripped a 2x8” for this, as shown peaking out in front of the door jamb in the first photo). I ordered doors and provided this info to the supplier- they gave me doors with a 6-1/2” true jamb width.

The problem I have is that if I install the door so the sill is flush with the edge of the slab, it leaves a healthy step back from the stucco stop. If I move the door out so the jamb is even with the stop, then the sill is hanging in the air.

I figure I have two/three options- install the door so the sill is flush and make an extension for the jamb, install the jamb flush with the stop board and build an extension for the sill, or third- inset the door so it sticks inside past the studs 5/8” so when drywall is installed, the trim will neatly fit across the jamb (this would require a longer jamb extension outside than option one).

I stopped by a new build nearby (third pic) to see how they did it, and it seems like they had a slight overhang and used this j threshold that I think looks sloppy.

Opinions?

 

[The Cobbler]

I would hang the sill a bit over the outside of the concrete and build jamb extensions

 

[TXNinAZ]

I would hang the sill a bit over the outside of the concrete and build jamb extensions

So would that require mortar under the sill to support it? Or will it survive hanging out that 5/8” or so?

 

[The Cobbler]

I would hang it over just enough to be a drip edge so water runs off it & not back underneath . in other words cover the concrete & then some. 5/8 is probably good. then whatever spaces you have fill them with extensions and paint or cap to match

 

[TXNinAZ]

I would hang it over just enough to be a drip edge so water runs off it & not back underneath . in other words cover the concrete & then some. 5/8 is probably good. then whatever spaces you have fill them with extensions and paint or cap to match

Gotcha that makes sense. The door on the north side of the building should hold up well with the joint in the jamb, but I will have to pay attention to how it does on the south side with the intense sun and whatever water we get. Hell it might even be so close that I can just put a good bead of sealant on it and install the exterior trim a little wider and be all set.

Anybody else have suggestions?

 

[jack stand]

I'm guessing that you have in swing doors and it would normally be mounted flush with the interior wall surface for the door to be able to open back to the wall.
Where does your threshold end up in relation to the slab mounting the door this way?
I've supported thresholds with a PT 1x or 2x "tapconed" and glued to the slab. Doors are often set in a bed of construction adhesive or a quality sealant.

 

[TXNinAZ]

I'm guessing that you have in swing doors and it would normally be mounted flush with the interior wall surface for the door to be able to open back to the wall.
Where does your threshold end up in relation to the slab mounting the door this way?
I've supported thresholds with a PT 1x or 2x "tapconed" and glued to the slab. Doors are often set in a bed of construction adhesive or a quality sealant.

Yes it’s an in swing door. If it’s back far enough to swing 180° then I’ll have about an inch of jamb extension to make on the outside.

 

[TXNinAZ]

Yes it’s an in swing door. If it’s back far enough to swing 180° then I’ll have about an inch of jamb extension to make on the outside.

Actually check that- the thickness of the curb prevents 180° impossible. But yes, flush with finished drywall depth would leave around an inch to cover outside.