Integrating a vapour barrier when installing moisture-resistant plasterboard can enhance the protection against dampness and humidity, especially in areas prone to high moisture levels. The vapour barrier works to prevent warm, moist air from penetrating the walls and condensing, which can lead to damp issues over time.

While moisture-resistant plasterboard provides a substantial level of protection on its own, a vapour barrier adds an extra layer of defence, ensuring a more comprehensive solution. This is particularly recommended in spaces like bathrooms, kitchens, or any areas where moisture is a consistent presence.