Intumescent strips and acoustic door seal
Fire and Smoke Intumescent Strips protect both the spread of fire and smoke through a building, also being compliant with BS 476: Part 31: 1987 cold smoke seal regulations.Intumescent strips should be used in fire door applications. Available in two types: intumescent only and intumescent with a smoke seal, in a variety of colours.
All intumescent strips have Certifier approval CF543, passed at BS476 part 22 and 31.1, and have NHBC approval. All timber fire doors must be fire stopped with an intumescent strip.