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Application

Suitable for domestic and commercial application. Can be used in a fully supported or unsupported tiled, slated or metal roof system. Can be draped over rafters or laid directly over insulation.


Membrane must be installed in accordance with the relevant sections of BS 5534:2018 and Timloc Building Products’ installation guide.

Description

A triple layer, waterproof breather membrane.


Features and benefits:

  • Available in 1 m and 1.5 m widths.
  • Light grey upper layer branded with MemBreathe by Timloc logo.
  • Grey lower layer.
  • Lightweight.
  • Flexible.
  • Easy to use.
  • Quality tested in accordance with BS 5534, Annex A.
  • Suitable for warm and cold roof application.
  • Hydrostatic head to BS EN 20811, 281 cm.

General information

Color

Grey

Material

Polypropylene

Shape

Rectangle

Length

50000 mm

Width

1000 mm

1500 mm

Uniclass

Pr_25_57_10_94 Vapour-permeable sheetsPrimary

CAWS

H67/24 Vapour-permeable underlay

P10/320 Breather membrane

H61/22 Vapour-permeable underlay

H60/22 Vapour-permeable underlay

P10/65 Breather membrane

H31/55 Breather membrane

H30/50 Breather membrane

H22/20 Breather membrane

H21/20 Breather membrane

H62/3 Roof slating

H92/785 Breather membrane

H31/280 Breather membrane

H30/350 Breather membrane

H22/130 Breather membrane

H21/130 Breather membrane

H67/290 Vapour-permeable underlay

H65/235 Vapour-permeable underlay

H62/235 Vapour-permeable underlay

Specification data - Vapour-permeable sheets

Standard

To BS EN 13859-1.

Third-party certification

British Board of Agrément (BBA) certificate.

Performance criteria

-

Water vapour properties

0.02 m.

Manufacturer guidance

Sd.

Fire performance

To BS EN 13501-1, Class E.

Tensile properties

To BS EN 12311-1, MD 195 N/ 50 mm. TD 130 N/ 50 mm.

Guidance for specification option:

Elongation to BS EN 12311-1, MD 51%. TD 65%.

Nail tear to EN 12310-1, MD 99 N. TD 110 N.

Manufacturer guidance

Tensile strength.

Class (minimum)

W1.

Material

Polypropylene.

Guidance for specification option:

High tensile polyproylene layers around a microporous polypropylene film.

Form

Spun-bonded.

Weight (minimum)

115 g/m².

Roll width

1000 mm.

Roll length

50000 mm.

Roll weight

5.8 kg.

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