Adequate weep screed?

I guess this is a type of weep screed but the ones that I usually see have holes in them. Anyone familiar with this type of weep screed?



Thats not weep screed it is called caseing bead/66/stop/and also j-trim. It just depends on who you are talking to.

They do how ever make it with holes in the bottom and western-onecote considers it a weep then.

Here’s some more pictures. I would have expected the stucco to terminate two inches above the upper deck with a weep screed at the base.

This installation just looks wrong to me but I don’t speciale in stucco applications.


For me I would rather look at the 66 then weepscreed. I think weep screed is over rated.

Can you see the little oblong holes in the 66?

As per ASTM specs you are right.

These are the rest of the pictures that go with the one of the 66 with the holes in it. This house has defective stucco.

No holes in it that I could see Carl.

No holes here.


On the vertical there is on the corner where they bent it and about 3 inches above that there is another they are spaced about 3 inches apart.

And in your pictures it looks like the windows are improperly installed as per ASTM and most window mfgrs.

I don’t see it Carl.

What about the way they flashed it on the upper back porch?

Where are you talking about John?

Show me the picture.

The flashing here at the patio.


Is that a sad attemp at counter flashing? It the moisture barriers and flashing were correct down to the rimjoist of the deck that is cosmetic for the most part. They might have known the flashing wasn’t correct and thats their fix. Counter flashing with stucco doesn’t work as well as it does with brick and stone.

That looks more like a piece of plastic base board trim to me just to keep them from scuffing the bottom of the wall with chairs.

Lath products and what they look like.

**Casing bead is used as a plaster stop, screed ground, as exposed trim around doors and windows, and as a base screed. Available in galvanized steel and zinc alloy, 10 ft. lengths, 30 pieces, 300 feet per carton. The expanded flange width is 3 inches.
**Galvanized Weight per 1000 Lin. Feet **
Zinc Weight per 1000 Lin. Ft
135 Lbs.
130 Lbs.
147 Lbs.
140 Lbs.
155 Lbs.
148 Lbs.
163 Lbs.
156 Lbs.
170 Lbs.
163 Lbs.
178 Lbs.
171 Lbs.
186 Lbs.
178 Lbs.
1 1/4"
195 Lbs.
186 Lbs.


Stucco leaks! No way to stop this from happening.

Vapor barriers, sub-surface sealants, and flashings keep the structure dry.

I think Carl is talking about the pix in the links he furnished, not your project.

The balcony base surface flashing will serve no purpose as far as deterring moisture intrusion unless it was placed against the substrate under the vapor barrier(s). I’d bet money this didn’t happen. This in fact will increase the presence of moisture and prolong the drying time ergo deterioration of barriers and rot.

The AHJ may allow 66 as foundation screed but it does not meet weep requirements and will eventually rust out. May also trap moisture with the same results as above.

I found some good info here:


Are you referring to ASTM standard astm c1063?

Could not agree more with Carl on this one, because with the little Stucco in this area, there was a time where plastered walls in hospitals and the sort had a pretty heavy concentration and all the accessories relate to one and the other.

The pictures to me shows some improper installations to provide a functional rain screen as Carl talked about and is improperly installed.

Since Carl is the expert in this category, I don’t believe I have to say anymore.

Marcel :slight_smile: :slight_smile:

Yes. Astm C1063 and ASTM C926

But I don’t agree with everything the want.