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AIRSTOP SD50 Vapour Retarder

Is a vapour retarder for roof and wall constructions.

universal and economical

Product data sheet

Available dimensions
Product data
Processing guideline
Downloads

AIRSTOP SD50 Vapour Retarder

Available dimensions
Product data
Processing guideline
Downloads

Available dimensions

Article number	Roll width	Roll length	Rolls / Pallet	Total area		Inquiry List
2SD5031050	3.1 m	50 m	35 rolls	5425 m²
2SD50310100	3.1 m	100 m	20 rolls	6200 m²

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Product data

Field of application

for roof and wall constructions
for exterior vapour-permeable structural elements
in the interior

Advantages

Imprinted raster
Easy to deal with

Is a vapour retarder for roof and wall constructions.

Material composition

PP - fleece with PP - Function film

sd-value

50 m

Temperature resistance

-20–60 °C

Weight

95 g/m²

Colour

White

Weight per unit area

EN 1849-2

sd-value - Standard

EN 1931

Elongation - lengthwise

50 - 100 %

Elongation - crosswise

50 - 100 %

Elongation

EN 12311-2

Tensile strength - lengthwise

180 N/5 cm (±20)

Tensile strength - crosswise

120 N/5 cm (±20)

Tensile strength

EN 12311-2

Tear propagation resistance - lengthwise

130 N (±20)

Tear propagation resistance - crosswise

180 N (±20)

Tear propagation resistance

EN 12310-1

Storage

cool and dry

Fire performance

EN 13501_1 / EN 11925_2

Processing guideline

INFO

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

(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.

(2) AIRTIGHT ADHESION

Airtight adhesion of the joints, connections and penetration points must be carried out using the AIRSTOP Adhesion system.

(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.

(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.