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Description:
A fiber-reinforced stucco base concentrate. Also available as a concentrate. See separate literature.
- Factory blended mixture of portland cement, synthetic fibers, and proprietary ingredients.
- Specified sand is added at the job site (LaHabra Wall® concentrate only).
- Can be installed 3/8-1/2" (10-12.7mm) thick in one application.
Uses:
As a stucco base, apply LaHabra Wall® over:
- Masonry surfaces, metal lath or stucco netting.
- Lath or stucco netting is applied over:
- Building paper with continuous sheathing.
- EPS applied over building paper
Composition:
- Binder: Portland cement, fibers and proprietary ingredients for workability and curing.
Packaging:
Packed as a concentrate with sand in 80lb. (36.3kg.) bags.
Storage:
Shelf life: six (6) months if properly stored and kept dry.
Coverage:
One 80 lb. (36.3kg.) bag of LaHabra Wall® concentrate covers approximately 2.8 square yards (2.3m2) at 3/8 inch (10mm) thickness.
Job Procedure
A. Surface Preparation:
- On masonry surfaces, apply only to those surfaces that are sound, clean, dry, unpainted, and free of any residue which may affect the ability of LaHabra Wall® to bond to the surface. Thoroughly dampen surface at time of application. See cautions and limitations.
- Over either wood or steel framing, stud selection, bracing, water-resistive barrier and sheathing must conform to the applicable codes.
- When lath is used, apply according to ASTM C 1063. Cover wood-based sheathings with a minimum of two layers of Grade D building paper. Other approved sheathed substrates require a minimum of one layer of Grade D building paper.
- When using T&G Insulation Board, the tongue & groove board is installed horizontally with the tongue up. Vertical joints shall be staggered and shall overlap a framing member.
- Corner aid, control joints etc. must be attached mechanically through the substrate into a framing member.
- Do not apply to substrates which are frozen or contain frost or ice.
- Apply to surfaces prepared for portland cement plaster.
B. Mixing:
- Use cool, clean potable water; let hose run to clear it of hot water.
- LaHabra Wall® with Sand: First add approximately 1 gallon (3.8 liters) of water to the mixer, then add the LaHabra Wall®. Add approximately 60lb of the ASTM C 897 sand. Add one bag of LaHabra Wall®. When mixture becomes homogeneous, add remaining water 1/2 gllon (1.9 liters). Mix at low speed for a minimum of three minutes, until the mixture is smooth. Do not over mix; never mix more than five minutes. Mix each batch for the same amount of time. Mix batches of the same size, using the same amount of water, to ensure consistency. Use LaHabra Wall® immediately after mixing.
- No unapproved additives of any kind, such as portland cement, lime, rapid binders, antifreeze, accelerators, etc. should be added under any circumstances.
- A great variety of colors and textures may be obtained by applying LaHabra finishes.
C. Application:
For complete application procedures refer to ICC-ES ER4226, NES NER 547.
NOTE: All materials are to be installed by a listed applicator and in compliance with the current manufacturer's specifications and/or Evaluation Report and local building code requirements.
- LaHabra Wall® may be sprayed or hand-applied to a minimum thickness of 3/8" on wood or steel studs or a maximum thickness of 1/2".
- LaHabra Wall® should be kept moist by water curing within 48 hours after application. During high temperature or dry weather, frequent water application is required.
- Start light fogging after initial set of 1-2 hours.
- Allow LaHabra Wall® to cure thoroughly before applying acrylic primers or finishes.
- Texture may be applied as soon as base has set sufficiently to receive it.
NOTE: When a portland cement finish coat is to be applied, the surface must be opened (not smooth) by floating or brushing.
Testing
LaHabra Wall® fibered cement plaster has been tested in accordance with the following tests and methods:
| Test |
Method |
| Accelerated
Weathering |
ASTM
G 23 |
| Cyclic
Aging |
ASTM
B 1183 |
| Compressive
Strength |
ASTM
C 472 |
| Compressive
Strength |
ASTM
C 109 |
| Flexural
Strength |
ASTM
C 348 |
| Transverse
Load |
ANSI/ASTM
E 330 |
| Flame
Spread |
ASTM
E 84 |
| Vertical
Flame Spread |
ASTM
E 108 MOD |
| Vertical
Furance |
ASTM
E 136 |
| Water
Penetration |
ASTM
C 413 |
| 1-Hour
Fire Endurance |
ASTM
E 119 |
| Multi-Story
Fire Evaluation |
UBC
17-6 |
| NES
Fire Rating |
NER-547
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| Fire Resistive Assembly |
ICC-ES ER4226 |
Material Standards
Portland cement ASTM C-150;
Federal SS-C-1960/3 Type 1
Cautions and Limitations
- LaHabra Wall® shall not be applied when temperatures fall below 40°F (4°C) within 48 hours of application.
- LaHabra Wall® should not be applied if ambient temperature exceeds 120°F (49°C) within 24 hours of application.
- A suitable bonding agent should be used if a Portland cement finish is not applied within 7 days.
- For very dense or smooth concrete, contact LaHabra Technical Services for additional information.
- See package for handling precautions.
- Always wear proper safety equipment, including particle mask, when mixing or applying this product.
Information contained in this brochure conforms to general recommendations for the installation of LaHabra Wall®, and is provided in good faith. ParexLaHabra, Inc. assumes no liability, expressed or implied, as to the workmanship, engineering or architecture of any project.
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Spec Guide
