Superwall Stucco System

A proprietary mixture of portland cement, sand, fibers, water, and proprietary ingredients — reinforced with wire fabric or metal lath, applied in a single coat at a minimum 3/8 inch thickness.

Superwall Stucco System bag
The Product

One coat. Lasting strength.

Superwall's fiber-reinforced portland cement stucco system is engineered for durability and weather resistance, applied in a single coat over wire fabric or metal lath at a minimum thickness of 3/8 inch.

Product Options

Two formulations, one standard of quality

Choose the Superwall formulation that fits your jobsite and application method.

Superwall premixed stucco bag
Premixed

Glass Fiber-Reinforced Exterior Stucco Mix

Factory-prepared for consistent results on every batch.

  • Packaging: 80lb bags
  • Add 5 gallons water per bag
  • Add 215lbs sand per bag
Superwall field-blended stucco materials
Field-Blended

Field-Blended Stucco

Field-prepared using the Superwall Polymer system.

  • 94lb portland cement
  • 430lbs sand
  • Superwall Polymer additive
Compatible Substrates

Applies to virtually any surface

EPS Insulation Board
Fiberboard
Plywood
Gypsum Sheathing
Concrete
Masonry
Technical Specifications

Performance you can build on

Application ThicknessMinimum 3/8 inch
Application Temperature40°F to 110°F
Wind Load Rating29 psf
Fire RatingOne-hour fire-resistance rated
CuringMoist cure, minimum 24 hours
Packaging80lb bags
ICC
ES
ESR
2214

ICC-ES ESR-2214

Reissued August 2025

Evaluated for weathering, durability, fire-resistance, and structural performance.

Download ESR-2214 Report
Gallery

Superwall in action

Superwall product bag
Superwall stucco product detail
Superwall jobsite inventory
Superwall warehouse inventory
FAQ

Common Questions

What is the Superwall Stucco System made of?

A proprietary mixture of portland cement, sand, fibers, water, and proprietary additives, reinforced with wire fabric or metal lath.

What substrates is Superwall compatible with?

EPS insulation board, fiberboard, plywood, gypsum sheathing, concrete, and masonry.

What is the application thickness?

Superwall is applied in a single coat at a minimum of 3/8 inch thickness.

Is Superwall fire rated?

Yes. When installed in accordance with the assemblies described in ICC-ES ESR-2214, Superwall qualifies for one-hour fire-resistance-rated wall assemblies.

What temperature range can Superwall be applied in?

Between 40°F and 110°F ambient air temperature.

What is the wind load rating?

29 psf, positive or negative, when applied to wood studs spaced a maximum of 24 inches on center.

Is Superwall code compliant?

Yes. Superwall is evaluated under ICC-ES ESR-2214 and complies with the IBC, IRC, and UBC building codes.

How is Superwall packaged?

Premixed product is packaged in 80-pound bags. Field-blended options are also available.

How long does Superwall need to cure?

Moist curing is required for a minimum of 24 hours, or longer if needed to fully hydrate the cement.

Where is Superwall manufactured?

Superwall is proudly manufactured in Chandler, Arizona.