What is an important factor in making sure foundation waterproofing is effective?

An important factor in ensuring that foundation waterproofing is effective is having a completely dry foundation at the time of application. When the foundation is dry, the waterproofing material can adhere properly to the surface, ensuring a strong bond. If there is moisture present, it can lead to poor adhesion, which may compromise the integrity of the waterproofing layer.

Additionally, proper preparation of the surface allows for better penetration and effectiveness of the waterproofing material, preventing future water infiltration. Having a dry foundation helps in creating a complete seal against moisture, thereby enhancing the overall effectiveness of the waterproofing system and protecting the structure from potential water damage.

This principle underscores the importance of preparation in construction practices, particularly when dealing with materials that must withstand exterior conditions.