Stucco is forgiving of almost everything except water that gets behind it. Most failures we get called in to fix trace back to one of these:
Every one of those is preventable at the lath / paper stage. Which is why we install both — and why our pre-coat walkthrough is non-negotiable.
We work with both integral-color cement stucco (color mixed into the final coat) and field-applied acrylic color coats. The choice depends on the building, the budget, and how the GC wants the exterior to weather over time. We'll talk you through both options on the bid.
| 3-Coat System | Scratch / brown / finish per ASTM C-926, 7/8 in. nominal total |
|---|---|
| 1-Coat System | 3/8 in. fiber-reinforced base + acrylic finish, ICC-ES approved |
| Substrate | 3.4 lb galvanized self-furring lath over 2 layers Grade-D paper (3-coat) or sheathing-direct (1-coat) |
| Cure | 7-day minimum moist-cure between brown and finish (3-coat) |
| Control Joints | Every 144 sq ft or 18 LF, per ASTM C-1063 |
| Weep Screed | 26-ga. galvanized, 4 in. above earth / 2 in. above paving (CBC §2512.1.2) |
| Color | Integral or field-applied acrylic; field samples for approval |
| Warranty | 2-year workmanship; 10-year material per manufacturer |
"
The stucco on our oceanfront builds takes a beating — salt air, sun, fog. The Richartz finishes still look fresh after a decade. That tells you everything about how they detail the substrate.
— General Contractor · Hermosa Beach
Recent Stucco Work
