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Stucco Guide

Stucco is a durable exterior plaster finish made from a binder, aggregates, and water, with optional additives for enhanced performance. There are various stucco systems, including three-coat, one-coat, and EIFS, each with specific application guidelines. Maintenance involves regular inspections, cleaning, and prompt repairs to ensure longevity.

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41 views2 pages

Stucco Guide

Stucco is a durable exterior plaster finish made from a binder, aggregates, and water, with optional additives for enhanced performance. There are various stucco systems, including three-coat, one-coat, and EIFS, each with specific application guidelines. Maintenance involves regular inspections, cleaning, and prompt repairs to ensure longevity.

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adebanjo ademola
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Stucco Overview

Stucco is a durable, versatile exterior plaster finish applied over various substrates like masonry,

wood, or metal lath. It serves both decorative and protective functions, offering a range of textures

and finishes.

Composition

Traditional stucco comprises:

- Binder: Slaked lime or Portland cement

- Aggregates: Clean, graded sand

- Water: To achieve the desired consistency

- Optional Additives: Fibers, pigments, or acrylic modifiers for enhanced performance

Modern formulations may include acrylics and other polymers to improve flexibility and adhesion.

Types of Stucco Systems

1. Three-Coat System:

- Scratch Coat: Base layer applied over lath

- Brown Coat: Leveling layer

- Finish Coat: Final decorative layer

2. One-Coat System:

- A single application that combines the scratch and brown coats, often modified with fibers or
polymers for strength.

3. Exterior Insulation and Finish Systems (EIFS):

- Synthetic stucco applied over insulation boards, offering enhanced energy efficiency.

Application Guidelines

- Surface Preparation: Ensure substrates are clean, dry, and properly wrapped with a water-resistive

barrier.

- Mixing: Combine ingredients to achieve a workable consistency, avoiding excessive water.

- Application: Apply coats as per the chosen system, allowing adequate curing time between layers.

- Finishing: Texture the final coat as desired, using appropriate tools and techniques.

Maintenance Tips

- Regular Inspection: Check for cracks, discoloration, or moisture intrusion.

- Cleaning: Use mild detergents and soft brushes to clean surfaces without damaging the finish.

- Repairs: Address minor damages promptly to prevent further deterioration.

Additional Resources

For comprehensive information and detailed procedures, consider reviewing these guides:

- LaHabra Stucco Application Guide

- Stucco Handbook by Magna Wall

- Homeowner's Guide to Stucco by InterNACHI

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