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Oldroyd® Xtf is a waterproof, fire resistant membrane designed specifically to protect tunnels from the detrimental effects of dripping water.

The membrane consists of a specially profiled, studded and grooved flame retardant polypropylene (PP) sheet, approximately 1 mm (40 mils) thick, onto which is laminated a high tensile strength, fire resistant woven fabric of basaltic mineral fibres.

Whilst the polypropylene sheet provides the structure of the membrane and ensures its waterproofness, the basaltic fibre fabric increases its mechanical strength considerably, as well as being of vital importance to the fire resistance properties of the membrane.

Oldroyd Tunnel Membranes

Norwegian manufacturer Oldroyd are the leading supplier of membrane systems for tunnels in Scandinavia. Through our exclusive partnership, we are delighted to act as the sole UK distributor for Oldroyd Xtf membrane, a uniquely sustainable fireproof and waterproof product for underground projects.

Key Benefits

Typical Applications

Technical Data

Fire Test to EN 13501-1

Available across the UK

Key Benefits

B-s2.d0 fire rating to EN 13501-1:2007+A1:2009
Fire resistant for more than 20 minutes at >1000°C
Fixing average of 413 N to withstand the extreme negative pressure/suction of high-speed trains
Protection of the railway tunnel for a minimum of 60 years
Does not require covering, and so the whole of the overnight rail closure can be used for membrane fixing
Thoroughly tested in challenging Norwegian and Faroe Island railway tunnels
Toxic gas emissions during a fire are less than 10% of the maximum allowed level
CO2 formation is less than 20% of the maximum allowed level
Halogen free – No chlorine compounds, bromides or fluorides

Typical Applications

Tunnel membrane as part of the Newton CDM System.

Suitable Substrate

Bare rock surface
Cast concrete walls
Vaults in escape routes
Technical rooms (or similar)

Technical Data

Properties	Standard	Unit	Typical Value
Thickness (approx.)		mm	~ 1,6
Height Total		mm	~ 8
Width		m	1,20 / 1,50
Length, Sheet		m	2,40 – 3,00
Length, Roll		m	5 – 20
Weight		kg/m²	1,6 – 2,0
Tensile Strength, Fibres		MPa	1300
Tensile Strength, Membrane		MPa	> 1000
Softening Temperatures, Fibres	DIN 51730	°C	> 1100
Heat Deflection Temp., Polyolefin	ISO 75 (B)	°C	>120
Moisture Content	ISO 3344	%	<0,2
UL-Classification, Polyolefine	UL 94	1.6 mm	V0

Properties	Standard	Unit	Typical Value
Fire Test, Classification	EN 13509	B-s2.d0	Passed
Fire Test SBI 1
– FIGRA0.2MJ	EN 13823	W/s	<80
– THR600s	EN 13823	MJ	<1
– SMOGRA	EN 13823	m²/S²	<50
– TSP600s	EN 13823	m²	<140
– Fs, 30s	EN ISO 11925-.2	mm	<150
Application Temperature, Long Term		°C	-30 – +40
Plug Pull Out Force*		N	> 1000

*Provided solid rock or high quality concrete, applied in accordance to instillation guide.

Fire Test to EN 13501-1

Available across the UK

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Downloads

Download Oldroyd XTF Data Sheet

Download Oldroyd XTF Declaration of Performance

Product Data

Code: FM1

Size: 1.48m x 10m Roll

Colour: Black

Packaged Weight: 30kg

Area: 15/m²

Code: FMA1

Details: Mounting kit including Polypropylene fixing plugs with gaskets, stainless steel screws and covers x 200

Code: FMA2

Details: M-fix flame retardant screws x 200 (for membrane laps)

Code: FMA3

Details: Fire-rated foam x 750ml

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Our staff are able to provide guidance for projects of all sizes, whether you require some general advice about damp or waterproofing, or support with technical drawings and specifications.