Red Seal Tilesetter Practice Exam

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Question: 1 / 20

During tile installation, which factor is crucial to ensure proper adhesion?

The temperature of the tiles

The substrate's moisture content

Ensuring proper adhesion during tile installation is heavily influenced by the moisture content of the substrate. When the substrate is too dry, it can absorb moisture from the adhesive or mortar, leading to inadequate adhesion and potential failure of the installed tiles over time. Conversely, if the substrate is too wet, it may introduce excess moisture into the adhesive, which can also hinder the curing process.

Therefore, controlling the moisture content of the substrate is critical. It allows the adhesive to bond effectively by creating the right conditions for curing. Understanding the specific requirements for moisture levels relative to the type of materials used ensures a reliable installation that lasts, reducing the risks of tiles cracking, shifting, or lifting.

The color of the mortar

The tile placement pattern

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