Firetech   /   Ventilation ducts

Firetech   /   Ventilation ducts

Usually ventilation ducts pass from one partition area to another and can be a passage for fire spreading inside the building. Link has developed fire protection solutions in slabs TECBOR A and TECBOR B for both horizontal and vertical ducts tested according to UNI EN 1366-1. According to this regulation there are 2 typologies of ducts:

  • type A: ducts exposed to fire from outside
  • type B: ducts exposed to fire from inside

Besides EI requirement, classification of ventilation ducts must be completed with following symbols:

(i<-o): from inside to outside

(o<-i): from outside to inside(i<->i): both ways

ve: vertical duct

ho: horizontal duct