Construction
Construction Materials
Onnovo provides diverse preservation chemistries, such as Zinc Pyrithione (ZPT), Octylisothiazolinone (OIT), IPBC, DCOIT, and combinations thereof, effectively safeguarding construction materials. Our approach prioritizes understanding your unique challenges to deliver the RIGHT CHEMISTRY.
Understanding Construction Materials & Their Vulnerability to Microbial Growth
Construction materials are designed for strength, durability, and environmental resistance, yet many are highly susceptible to microbial contamination due to their composition and exposure to moisture, humidity, and organic matter.
Common biodegradation issues arise from:
- Fungal, bacterial, and algae growth – Weakens materials, causes discoloration, and leads to structural degradation.
- Moisture retention – Creates ideal conditions for mold and mildew in cementitious and wood-based materials.
- Microbial-induced corrosion (MIC) – Affects metal reinforcements, coatings, and composites in high-humidity environments.
- Biofilm formation – Reduces the effectiveness of coatings and sealants, leading to surface damage.
Materials Most at Risk for Microbial Degradation
- Cement & Concrete – Porous nature absorbs moisture, leading to mold & bacterial infiltration.
- Wood & Composite Materials – Organic content attracts fungi, termites, and microbes.
- Paints & Coatings – Prone to microbial contamination during storage and application.
- Plaster & Drywall – High moisture absorption increases mold susceptibility.
- Sealants & Adhesives – Can degrade over time due to microbial attack.
Types of Construction Materials & Their Antimicrobial Needs
Different building materials require tailored antimicrobial strategies to prevent contamination, extend longevity, and maintain aesthetics.
| Material Type | Key Challenges | Required Antimicrobial Protection |
|---|---|---|
| Concrete & Cementitious Materials | Mold growth, microbial staining, durability loss | Mold inhibitors, anti-algae treatments |
| Wood & Engineered Timber | Fungal decay, termite infestation, biodegradation | Biocidal wood preservatives |
| Drywall & Gypsum Boards | Mold & mildew growth in damp environments | Antifungal & moisture-resistant additives |
| Paints, Coatings & Sealants | Microbial contamination, discoloration, film degradation | In-can & dry-film preservatives |
| Adhesives & Grouts | Bacterial & fungal degradation in high-moisture areas | Antimicrobial additives for long-term protection |
Risks of Microbial Growth in Construction Materials
Failing to incorporate antimicrobial protection can lead to serious consequences:
- Structural Damage & Material Failure – Weakening of concrete, wood, and coatings over time.
- Health & Safety Hazards – Increased mold exposure, leading to respiratory issues and allergic reactions.
- Aesthetic Degradation – Fungal staining, discoloration, and biofilm formation on surfaces.
- Regulatory & Compliance Issues – Many building codes require mold-resistant materials in high-humidity areas.
- Higher Maintenance & Replacement Costs – Frequent remediation needed for mold removal and restoration.
The construction industry is shifting towards innovative antimicrobial solutions to ensure long-term material integrity. Manufacturers are integrating Encapsulated Biocide / Cell Technology based preservatives – Ensures slow, staged release of antimicrobial agents, extending protection.
Microbial Challenges in Different Climates & Environments
Microbial degradation of construction materials varies significantly based on climate, environmental conditions, and regional construction practices. Understanding these factors is essential for selecting the right antimicrobial solutions to ensure durability, safety, and performance.
High-Humidity & Tropical Climates (e.g., Southeast Asia, South America)
Primary Risks:
- Extreme moisture exposure accelerates mold, mildew, and algae growth.
- Wood and drywall are particularly vulnerable to fungal decay and biofilm formation.
- High-temperature conditions can compromise preservative stability, requiring advanced antimicrobial formulations.
Cold & Temperate Climates (e.g., Europe, North America)
Primary Risks:
- Freeze-thaw cycles cause material cracks, allowing microbial infiltration.
- Insulated structures trap moisture, leading to mold growth in confined spaces.
- Condensation on concrete & drywall creates the ideal breeding ground for bacteria.
Dry & Arid Climates (e.g., Middle East, Australia)
Primary Risks:
- Lower humidity reduces microbial risks, but UV exposure degrades coatings & antimicrobial agents.
- Dust accumulation can trap bacteria & fungi, leading to microbial hotspots.
- Certain antimicrobial formulations may lose efficacy due to heat-induced breakdown.
Industrial & High-Pollution Environments (e.g., Urban & Manufacturing Hubs)
Primary Risks:
- Airborne pollutants interact with construction materials, affecting coating integrity & microbial defenses.
- Industrial moisture, chemicals, and heat create unique microbial challenges in factories, storage facilities, and high-traffic areas.
- Corrosion from microbes (MIC – Microbially Influenced Corrosion) in concrete & metal-based structures.
Why Climate-Based Protection Matters
Onnovo works closely with construction material manufacturers to develop custom antimicrobial solutions tailored to specific regional climate conditions. Our expertise ensures that antimicrobial additives perform consistently, even in extreme conditions while ensuring compliance with local climate-based regulations.
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Onnovo’s Services & Support for our Customers
Onnovo understands that construction material manufacturers require specialized solutions to ensure their products meet performance, durability, and regulatory standards.
Onnovo provides guidance on antimicrobial compliance, ensuring adherence to:
- EPA (US) – Biocidal regulations for coatings & building materials
- REACH (EU) – Registration of chemical additives in construction products
- ISO 22196 – Antimicrobial performance testing for surfaces
- ANVISA (Brazil) & Asian Construction Safety Standards
- ICC (India) – Indian Chemical Council
We collaborate with manufacturers to develop high-performance antimicrobial additives tailored for concrete, coatings, and adhesives.
Our advanced laboratory testing assesses:
- Microbial resistance over time in different environments.
- Efficacy of antimicrobial additives in various construction applications.
- Durability studies to optimize additive performance.
Onnovo provides low-VOC, environmentally safe antimicrobial solutions that comply with green building certifications.
Our team offers expert formulation troubleshooting, product development guidance, and application support for construction material manufacturers worldwide.
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