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Don & Low Reflectashield - Breather Membrane

Verified by manufacturer 3 months ago

Don & Low Ltd (Nonwovens)

High-performance breather membrane for timber and steel frame structures.

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+44 (0)1307 452200 Website

Application

Breather membrane for use on the cold side of the insulation. Suitable for timber frame, steel frame and modular build-ups.

Description

Reflectashield® is a high-performance breather membrane specifically designed to enhance the thermal performance of timber and steel frame structures.


Reflectashield® reduces the thermal transmittance (U-value) of walls by introducing a reflective surface in the cavity between the frame and outer cladding, thereby inhibiting radiant heat transfer across the cavity.


As the membrane's breathability is not compromised by its thermal properties, Reflectashield® continues to act effectively to minimise the risk of condensation.


On completion, breather membranes help assist the diffusion of moisture from the building and reduce the condensation risk. Combining the proven benefits of a breather membrane and adding a low-emissivity reflective surface helps reduce heat loss through the cavity wall system.


Features and benefits:

  • Excellent thermal resistance of 0.81 m2K/W.
  • Provides a weather-resistant covering until the final facade has been installed.
  • Can be left exposed for 6–12 weeks at STA Advice Note 18.
  • Aids on complying with BS 5250 and Part L.
  • Low vapour resistance aids in mitigating the risk of interstitial condensation.
  • Coated to ensure aluminium foil is resistant to corrosion and damage.
  • Durable product with high nail tear and tensile properties.
  • Independently third-party certified by BM TRADA.
  • UK manufactured.

General information

Color

Silver

Finish

Coated

Material

Aluminium

Shape

Rectangle

Length

50000 mm

100000 mm

Width

2900 mm

Height

0.55 mm

Uniclass

Pr_25_57_65_60 Plastics sheetsPrimary

CAWS

P10/65 Breather membrane

P10/320 Breather membrane

H31/55 Breather membrane

H31/280 Breather membrane

H30/50 Breather membrane

H30/350 Breather membrane

H22/130 Breather membrane

H21/20 Breather membrane

H22/20 Breather membrane

H21/130 Breather membrane

Specification data - Plastics sheets

Material

Aluminium foil.

Purpose

Breather membrane.

Third-party certification

BM TRADA Q-Mark.

Performance characteristics

-

Tensile strength (minimum)

To EN 12311-1 before ageing, 230 N/50 mm (MD); 150 N/50 mm (CD).
To EN 12311-1 after ageing, 190 N/50 mm (MD); 130 N/50 mm (CD).

Tear resistance

To EN 12310-1, 160 N (MD); 160 N (CD).

Elongation to break

To EN 12311-1 before ageing, 60% (MD); 80% (CD).
To EN 12311-1 after ageing, 45% (MD); 50% (CD).

Water vapour resistance (minimum)

To EN ISO 12572, 0.083 m (Sd) (+/- 0.011).

Fire performance

To EN 11925-2, Class E.

Physical properties

-

Colour

Silver.

Weight (minimum)

134 g/m².

Dimensions

-

Thickness (minimum)

0.55 mm.

Width (minimum)

2.9 m.

Roll length (minimum)

50 m.

Class (minimum)

W2 (before and after ageing).

Guidance for specification option:

Water penetration to EN 13111.

Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Material

Aluminium

Manufacturing plant location

Literature

VapourTX® Thermo & Reflectashield® Flyer

VapourTX® Thermo & Reflectashield® Flyer

Reflectashield Data Sheet Issue 1 - Mar 2024

Reflectashield Data Sheet Issue 1 - Mar 2024