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RAVATHERM XPS X MK
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RAVATHERM XPS X MK

Ravago Building Solutions Variant:
Third party certifications:
  • BSI Kitemark

    BSI Kitemark

    Certificate type

A spun-bonded polyethylene geotextile, this vapour permeable waterpoof membrane is used as a ‘breather’ layer in inverted ballasted flat roofs and is available in 1.5 m or 3 m rolls.

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Application

To be used in conjunction with Ravatherm XPS X 300 SL for an inverted flat roof - a form of flat roof where the thermal insulation is placed above the waterproof membrane.

Description

Ravatherm XPS X MK is a water flow reducing layer (WFRL) consisting of a polyethylene geotextile, used in conjunction with Ravatherm XPS X 300 SL.


Features and benefits:

  • Water vapour-permeable.
  • Water-resistant.
  • Tear-resistant.
  • Uv stable - can be left exposed outdoors for up to four months.
  • Fire - melts and shrinks away from a heat source (unclassifiable as regards building regulations).
  • Temperature - retains flexibility and toughness down to -73°C, melting point is 135°C.
  • Excellent rot resistance making it ideal for insulating green roofs.
  • A WFRL is a critical component of an inverted flat roof, minimizing heat loss due to the rainwater cooling effect.
  • Ravatherm XPS X MK prevents rainwater from reaching the waterproofing layer, thereby reducing the rainwater cooling effect caused by rainwater flowing between the insulation and waterproofing membrane.

General information

Finish

Polyethylene geotextile

Color

Grey

Material

Polyethylene

Polyethylene geotextile sheeting.

Shape

Rectangular

Roll

Size

1.5 x 50 m

 1.5 x 50 m roll length

1 3.0 x 100 m

3.0 x 100 m roll length

Uniclass 2015

Pr_25_57_65_60 Plastics sheetsPrimary

CAWS

J31/130 Inverted roof coating

J31/390 Water flow reducing layer

J41/120 Built-up reinforced bitumen membrane inverted roof covering

J41/390 Water flow reducing layer

J42/120 Inverted roof covering

J42/390 Water flow reducing layer

Specification data - Plastics sheets Enhanced data

Material

Polyethylene.

Performance characteristics

-

Elongation to break

17 ± 5 % MD.

To EN 12311-1.

20 (± 6) % XD.

To EN 12311-1.

Fire performance

To EN 11925-2, Class E.

To EN 11925-2  When tested with XPS range.

UV stabilization

Up to four months.

 Can be left exposed outdoors.

Form

Spun-bonded.

 Polyethylene geotextile membrane. 

Root inhibitor

Waterproof layer.

Ravatherm XPS X MK should be loose-laid over the insulation, at right angles to the slope with 300 mm laps running down the slope.

Physical properties

-

Colour

White Sheeting with guidance lettering in blue.

White and blue.

Weight (minimum)

For 1.5 m roll length.

Execution

Installing geotextile sheet.

Product Reference

RAVATHERM XPS X MK

To be used in conjunction with Ravatherm XPS X 300 SL.

Flexibility at low temperature

-40°C.

To EN 1109.

Watertightness

W1 Class - to EN 1928 (A).

Nail shank

55 ±20 N MD.

To EN 12310-1.

50 ±20 N XD.

To EN 12310-1.

Roll width

1500 mm.

Roll length

50 000 mm.

Roll weight

5 kg.

Digital objects

Platform Compatible Version Certified to
IFC
-

6

2.1
Revit
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6

2.1
Download now from NBS National BIM Library

Literature

Ravatherm XPS X MK Technical Data Sheet

Ravatherm XPS X MK Technical Data Sheet

Third party certifications

  • BS EN 12311-1:2000 - Flexible sheets for waterproofing. Determination of tensile properties. Bitumen sheets for roof waterproofing
  • BS EN ISO 11925-2:2020 - Reaction to fire tests. Ignitability of products subjected to direct impingement of flame. Single-flame source test
  • BS EN 1928:2000 - Flexible sheets for waterproofing. Bitumen, plastic and rubber sheets for roof waterproofing. Determination of water tightness
  • BS EN 12310-1:2000 - Flexible sheets for waterproofing. Determination of resistance to tearing (nail shank). Bitumen sheets for roof waterproofing
  • BS EN 1109:2013 - EN 1109:2013Approval standard: Flexible sheets for waterproofing. Bitumen sheets for roof waterproofing. Determination of flexibility at low temperature