Products for building

MLA 135 – Anti-condensation roofing foil for roofs with uninhabited attics

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MLA 135 – Anti-condensation roofing foil

MLA 135 – Anti-condensation roofing foil for uninhabited atticsMLA 135 is a four-layer foil consisting of a polypropylene fabric coated on both sides with a layer of polypropylene and a layer of absorptive polypropylene fleece.

Effective protection against condensation

The MLA 135 foil is especially suitable as an underlayment (FWK) sealing layer for roofs with uninhabited but ventilated attics. The absorptive fleece layer prevents dripping of condensed water vapor accumulating from living spaces onto the roof structure.

When there is excess vapor, it is temporarily retained by the fleece and then gradually removed by the attic’s ventilation air.

Technical specifications

  • Commercial form: roll
  • Color: white
  • Weight: 135 g/m²
  • Width: 1.5 m

Parameter

MLA 135
Weight 135 (+/-20)

Fire resistance class

E

Water penetration resistance

  • before artificial aging
  • after artificial aging

class W1
class W1

Tensile strength – longitudinal

  • before artificial aging
  • after artificial aging

(770±300) N/50mm
(650±600) N/50mm

Tensile strength – transverse

  • before artificial aging
  • after artificial aging

(720±300) N/50mm
(435±400) N/50mm

Elongation – longitudinal

  • before artificial aging
  • after artificial aging

20% ± 12%
12% ± 6%

Elongation – transverse

  • before artificial aging
  • after artificial aging

20% ± 12%
12% ± 6%

Tear resistance

  • longitudinal
  • transverse

(400 ± 300) N
(400 ± 300) N

Flexibility at low temperature

-40ºC

Roll dimensions (m)

1.5 x 50 m