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AIRSTOP SD18 Vapour Retarder

AIRSTOP SD18 Vapour Retarder
Transparent, extremely tear-resistant vapour retarder and airtight layer for wall, roof and ceiling constructions.
  • extreme robust
  • transparent

Available dimensions

Article number Roll width Roll length Rolls / Pallet Total area Inquiry List
2AIRDB3 3 m 50 m 40 rolls 6000 m²
2AIRDB 1.5 m 50 m 45 rolls 3375 m²

Advantages

  • transparent
  • tear-resistant
  • easy to install
  • for floor, wall and ceiling

Product data

A transparent, extremely tear-resistant vapour retarder and airtight layer for wall, roof and ceiling constructions.
Material composition
PP fleece with PP covering
Thickness
0.2 mm
Thickness
EN 1849-2
Colour
Transparent grey with green imprint
Weight
90 g/m²
Weight per unit area
(± 10)
Weight per unit area
EN 1849-2
sd-value
18 m
sd-value - Standard
EN 1931
Temperature resistance
-40 °C
Temperature resistance
80 °C
Elongation - lengthwise
30 %
Elongation - crosswise
30 %
Elongation
EN 12311-2
Tensile strength - lengthwise
200 N/50 mm
Tensile strength - crosswise
160 N/50 mm
Tensile strength
EN 12311-2
Tear propagation resistance - lengthwise
250 (-50) N
Tear propagation resistance - crosswise
240 (-40) N
Tear propagation resistance
EN 12310-1
Storage
Cool and dry
Fire performance
E
Fire performance
EN 13501_1

Processing guideline

INFO

Vapour barriers can used with wall, roof and ceiling construction elements as an airtight layer and as a vapour retarding layer.
INFO

(1) MECHANICAL ATTACHMENT OF THE VAPOUR BARRIER

The vapour barrier is usually attached transverse to the position of the rafters, joists or beams with the smooth and/or printed side facing the installer. The lengths are fixed mechanically to the construction’s wood with approx. 10cm overlap using tacking staples. For metal C-studs a temporary attachment using double-sided adhesive tape or even a spray-on contact adhesive is a possibility.
(1) MECHANICAL ATTACHMENT OF THE VAPOUR BARRIER

(2) AIRTIGHT ADHESION

Airtight adhesion of the joints, connections and penetration points must be carried out using the AIRSTOP Adhesion system.
(2) AIRTIGHT ADHESION

(3) TRANSVERSE LATHING / MOUNTED AT INTERVALS

The laths underneath the vapour barrier have to be mounted before the cellulose is blown in. The centre distance shall be less than ≤30 cm. The joints of the vapour barrier also have to be covered by an additional lath. Glued connections and joints that were under tension have to be mechanically secured. The membrane has to be applied without tension.
(3) TRANSVERSE LATHING / MOUNTED AT INTERVALS

(4) LONGITUDINAL LATHING

When no transverse lathing is used, e.g. if formwork is installed on longitudinal lathing, the vapour barrier must be placed parallel to the rafters or to the construction. The joints must lie on the wood of the construction and be stapled overlapping and sealed using AIRSTOP adhesive tape. Before the insulation is blown in the longitudinal lathing must be mounted to provide mechanical relief of the joints.
(4) LONGITUDINAL LATHING