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Glidevale Protect Thermo Extreme Breather Membrane - Wall Breather Membrane

Verified by manufacturer 1 month ago

BPD Building Product Design Ltd Third party certifications:
  • BM Trada

    BM Trada

    Certificate type

A waterproof, low emissivity, highly reflective insulating breather membrane for use externally on buildings which are sited in very severe, exposed locations aligned to STA Advice Note 18.

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Application

Low emissivity insulating breather membrane for use on the cold side of insulation to enhance the thermal performance of external timber frame walls, Structural Insulated Panels (SIPs), Cross Laminated Timber (CLT) panels and steel frame construction. Designed for use externally on buildings which are sited in harsh environments where it is recommended that membranes with Class W1 water penetration are used.


Description

Protect Thermo Extreme is a waterproof, low emissivity, highly reflective insulating breather membrane which enhances the thermal performance of timber frame walls, Structural Insulated Panels (SIPs), Cross Laminated Timber (CLT) panels and steel frame construction.

Designed for use externally on buildings in locations which are typically high altitude, open to high winds and on westerly coastal sites in England, Ireland, Wales and Scotland, where a Class W1 water penetration resistance is recommended. Used on the cold side of the insulation.


Protect Thermo Extreme has been developed from the tried and tested Protect TF200 Thermo range and additionally utilises microporous film and microperforation technology.


Produced in the UK of five ply construction, Protect Thermo Extreme’s innovative design provides a highly reflective yet vapour permeable surface which protects the outer sheathing from moisture and ensures the water vapour passes into the external wall cavity. When installed with the foil facing into an unventilated airspace, this provides enhanced thermal performance by effectively blocking infra-red radiation, helping to deliver a low overall U-value of the wall.


Features and benefits:

  • Protect Thermo Extreme is CE marked and independently BM TRADA certified, meeting the requirements of BS EN 13859-2, TRADA and NHBC.
  • Aligned with STA Advice Note 18, with aged thermal resistance of 0.77 m²K/W, incorporating printing and using typical 600 mm stud centres.
  • Achieves Class W1 water resistance to BS EN 1928.
  • Class 1 surface spread of flame to BS 476-7.
  • Low emissivity reflective surface enhances the thermal performance of the wall.
  • Used within an unventilated cavity helps to create a radiant barrier to prevent heat loss and deliver a energy efficiency benefit on the wall's overall thermal performance.
  • Resists the passage of water, wind blown snow and dust into the interior of the building.
  • Easy to cut and handle with high nail tear resistance. Helps to meet overall U-value requirements set down in Building Regulations Part L1A & Notional Dwelling Specifications.
  • UV and heat stabilised.
  • Meets the permeability requirements recommended by TRADA and NHBC.
  • Corrosion and damage resistant reflective surface.
  • High burst strength, tough and durable.

General information

Color

Silver

Reflective silver face with green product branding

Finish

Reflective

Material

Polypropylene

Non-woven Polypropylene core.

Aluminium

Permeable high purity aluminium foil layer.

Shape

Rectangle

Supplied as a roll.

Length

100000 mm

Width

3000 mm

Uniclass

Pr_25_57_10_94 Vapour-permeable sheetsPrimary

CAWS

H42/115 Precast composite

H42/115 Precast composite

H51/110 Cladding

H51/110 Cladding

H42/110 Precast homogeneous

H42/110 Precast homogeneous

H41/110 GRP single-skin cladding

H40/110 GRC cladding

H20/155 Sheet cladding (attached to timber battens)

H20/10 Sheet cladding

P10/320 Breather membrane

P10/65 Breather membrane

H21/130 Breather membrane

H22/130 Breather membrane

H30/350 Breather membrane

H31/280 Breather membrane

H92/785 Breather membrane

H21/20 Breather membrane

H22/20 Breather membrane

H30/50 Breather membrane

H31/55 Breather membrane

Product range

Reflective Insulating Membranes
Wall Breather Membranes

Specification data - Vapour-permeable sheets

Standard

BS EN 13859-1, BS 5250, BS EN 15976, BS EN 8990, BS EN 12572, BS EN 13111; BS EN 13859-2.

Performance characteristics

See individual properties below or manufacturer's literature for further details.

Aged thermal resistance of 0.77 m²K/W.

Incorporating printing and using typical 600 mm stud centres. 

Class (minimum)

W1.

To BS EN 13111 - No leakage (aged).

Material

Aluminium foil layer with non-woven polypropylene core.

Form

Non-woven, spunbond.

Five ply construction to include a microporous film between two layers of spunbond, with a permeable, high purity aluminium foil layer on the upper surface that is micro perforated and embossed lower surface

Third-party certification

BM TRADA Certified.

Weight (minimum)

145 g/m².

Per roll: 45.9 kg.

Thickness (minimum)

0.42 mm.

Reflective face

Yes.

Emissivity

Independently tested by a European notified laboratory


0.02 (ε).

Unaged to BS EN 15976.

Emissivity (aged)

Independently tested by a European notified laboratory


0.03 (ε).

aged to BS EN 15976

Flame spread (to BS 476-6 and BS 476-7)

Class 1.

To BS 476-7


Tear strength

MD (along roll): 177 N; CD (across roll): 191 N.

To EN 12310-1 with mods.

Water vapour resistance

0.47 MNs/g / 0.093 Sd(m).

To BS EN ISO 12572.


Thermal resistance

Independently tested by National Physics Laboratories (NPL) in a typical UK house with timber frame wall cavity and verified by BM TRADA


0.77 m²K/W.

Aged - to BS EN ISO 8990 & BS EN 15976 (incorporates printing and to standard 600mm stud centres).

Roll width

3000 mm.

Roll length

100 m.

Fire classification

Class E.

Tested in accordance with BS EN 11925-2

Resistance to water penetration

To BS EN 13111, Pass Class W1.

TensileStrength

MD (along roll): 245 N/50mm; CD (across roll): 135 N/50mm.

To BS EN 12311-1 with mods.

Sustainability data

Contains Red List materials

No

Country of product manufacture

United Kingdom

Third party certifications

BM Trada

BM Trada

Protect TF200 Extreme & Thermo Extreme BM TRADA Schedule No CPS-023 & 024

BM Trada

BM Trada

Protect Thermo Extreme BM TRADA Certificate No CPS-024

Literature

Glidevale Protect TF200 Thermo Extreme

Glidevale Protect TF200 Thermo Extreme

Case studies

Bateman's Tower Cafe, Brightlingsea

Bateman's Tower Cafe, Brightlingsea

Setting the energy efficiency standard for social housing, ‘One Manchester’

Setting the energy efficiency standard for social housing, ‘One Manchester’

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