Glidevale Protect TF200 Thermo Breather Membrane

Developed to enhance the thermal performance of timber frame walls, Structural Insulated Panels (SIPs), Cross Laminated Timber (CLT) panels and steel frame construction.


Protect TF200 Thermo is a robust, highly reflective, insulating breather membrane which has been developed to enhance the thermal performance of timber frame walls, Structural Insulated Panels (SIPs), Cross Laminated Timber (CLT) panels and steel frame construction, and offers Class 1 surface spread of flame to BS 476-7. It provides a significant thermal benefit along with strength and performance enhancements over other reflective breather membranes.

Features and benefits:

  • Aligned with STA Advice Note 18, with aged thermal resistance of 0.77m2K/W, incorporating printing and using typical 600mm stud centres.
  • Resists the passage of water, wind blown snow and dust into the interior of the building.
  • Low emissivity reflective surface enhances the thermal performance of the wall.
  • Helps to meet the requirements of Approved Document Part L and Scotland Part J.
  • Corrosion and damage resistant reflective surface.
  • UV and heat stabilised.
  • Good nail tear resistance compared with alternative membranes.
  • High burst strength, tough and durable.
  • Unaffected by conditions found in timber frame walls.
  • Meets the permeability requirements recommended by TRADA and NHBC.
  • BM TRADA independently certified for all applications.

General information







Non-woven Polypropylene core.


Permeable high purity aluminium foil layer.




0.3 m x 100 m

0.6 m x 100 m

2.7 m x 100 m

3.0 m x 100 m

1.5 m x 50 m

Uniclass 2015

Pr_25_57_10_94 Vapour permeable sheetsPrimary


H22/20 Breather membrane

H31/280 Breather membrane

H22/130 Breather membrane

H21/130 Breather membrane

H92/785 Breather membrane

H30/350 Breather membrane

P10/65 Breather membrane

H30/50 Breather membrane

P10/320 Breather membrane

H31/55 Breather membrane

H21/20 Breather membrane

Specification data - Vapour permeable sheets Enhanced data


To BS EN 13859-1.

BS 5250.

BS EN 15976.

BS EN 8990.

BS EN 12572.

BS EN 13111.

Performance characteristics

Resistance to water penetration to BS13111 Pass Class 2 (No Leakage) aged.

Emissivity of the surface aged 0.03 to BS EN 15976 and BS EN 8990.

Class (minimum)


To BS EN 13111 - No leakage (aged).


Non-woven Polypropylene core.

Aluminium Foil Layer.


Micro perforated upper surface and embossed lower surface.

Third-party certification

BM TRADA Certified.

Weight (minimum)

150 g/m².

Thickness (minimum)

0.48 mm.

Reflective face



Positioned on the cold side of the insulated panel to minimise the risk of condensation within the structure.

Product Reference

Glidevale Protect TF200 Thermo Breather Membrane

Tear strength

239 N.

MD (along roll) - to EN 12310-1 with mods.

243 N.

CD (across roll) - to EN 12310-1 with mods.


210 (N/50 mm).

MD (along roll) - (N/50mm) to EN 12311-1 with mods.

205 (N/50 mm).

CD (across roll) - (N/50mm) to EN 12311-1 with mods.

Water vapour resistance

0.36 MNs/g / 0.071 Sd.

To BS EN ISO 12572.

Thermal resistance

0.77 m²K/W.

Aged - to BS EN ISO 8990 & BS EN 15976 (incorporates printing).


0.02 ɛ.

Unaged to BS EN 15976.

Emissivity (aged)

0.03 ɛ.

To BS EN 15976.

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

Class 1.

To BS 476-7.

Environmental information

Country of product manufacture

United Kingdom

Digital objects
Platform Compatible Version Certified to



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