According to TV280, a vapor barrier is classified into four classes based on the indoor climate of the building (I-IV). Specific vapor barriers are recommended depending on the indoor climate class: E1 – E4. See Table 13 p.62 TV280.
A bitumen vapor barrier can be used for indoor climate classes I–III.
A bitumen vapor barrier with ALU insert can be used for indoor climate classes I–IV.
| Climate Class | Substrate | Recommended fastening method | IKO vapor barrier |
|---|---|---|---|
| I, II, III (E3) | Concrete | Flame welding Mechanical Loose ballast with IKO base Self-adhesive Mechanical Loose ballast | IKO base V3 – IKO base Turbo IKO base P3 IKO base V3 IKO base Stick T/SA IKO base P3 IKO base P3 IKO base Stick T/SA IKO base P3 IKO base V3 |
| IV (E4) | Concrete | Flame welding Loose ballast | IKO shield ALU3 T/F -IKO shield ALU4 T/F IKO shield ALU3 T/F -IKO shield ALU4 T/F IKOshield ALU/SA-IKO shield PLUS ALU/SA IKO shield PRO ALU/SA IKO shield ALU3 T/F -IKO shield ALU4 T/F IKO shield ALU/SA-IKOshield PLUS ALU/SA IKO shield PRO ALU/SA IKO shield ALU3 T/F – IKO shield ALU4 T/F |