Volatile Organic Compounds (VOCs)

Volatile Organic Compounds (VOCs) are carbon-based chemicals that evaporate and disappear at room temperature. In the case of tile installations, installation and finishing materials release more emissions than actual tiles. Tiles are typically inert and have little to no emissions in normal scenarios.

VOCs in tile products negatively affect the air quality standards. They are especially responsible for disturbing the air quality balance in indoor tile installations such as bedrooms, living rooms, and kitchens. For a structure to receive a green building certification, a certain level of air quality must be maintained using eco-friendly installation materials.

Tile Installations and VOCs

Chemical-based materials such as sealants, binders, and more, that are used for sealing, bonding, and finishing, are major VOCs. Here is a list of common VOC materials that are used in tile installations:

• VOC Emissions From Adhesives: Adhesives are the biggest source of emissions, especially solvent-based solutions.
• Grouts and Sealers: These may give off emissions during curing. Sealants used for stain protection and surface enhancement let out the most emissions in this category.
• Primers and Waterproofing Systems: Surface preparation layers can often lead to high chemical emission levels, depending on the materials used.
• Cleaning and Maintenance Products: While most emissions happen during the installation, some post-installation products also give off emissions, making VOC certification flooring options quite necessary.

Together, the emissions from these components determine the overall VOC profile of a tile installation system.

Effect of VOCs on Indoor Environments

The effect of VOCs on indoor environments depends on the amount of emissions they generate.

• Installation Phase (Immediate Impact): Emission levels tend to be highest during the installation phase. A distinct odor is often the first sign of emissions in an enclosed space. Low VOC tile installation ensures a lower level of gas release.
• Curing Phase (Short-Term Impact): As the materials begin to set and cure, the emission levels begin to decrease. A faint odor may persist for some time.
• Indoor Air Quality: Spaces that experience high footfall, whether residential or commercial, need proper planning for long-term high air quality. This makes using VOC-compliant materials in spaces such as living rooms and restaurants a must.
• Cumulative System Effect: When many non-VOC-compliant materials are used together, their combined emissions may bring down air quality drastically.

These effects are particularly relevant in residential interiors, kitchens, bathrooms, and commercial spaces with limited ventilation. Managing VOCs in tile products is important as it directly affects the air quality, the environment, and the long-term well-being of the people using the space.