Fire resistant grills
How does a fire-rated ventilation grill work?
The functioning of a fire resistant transfer grill is based on the dilatation properties of the intumescent materials in the profiles. When the room temperature reaches 100°C, the material expands to attain several times its original thickness. The slats then melt together to constitute a non-combustible mass that procures a fire resistance similar to that of the construction penetrated. This way, it impedes the passage of the flames, heat, and gases.
- The intumescent grill is made of horizontal profiles filled with intumescent material.
- The fire breaks out and the temperature reaches 100°C.
- The intumescent material expands to attain several times its original thickness and thus prevent the passage of smoke and flames.