Danelaw LR120T – Vapour Permeable Tile and Slate Roofing Underlay

Danelaw® LR120T has been developed as a low resistance roof underlay for both tile and slate. It is intended for use on pitched roofs as a secondary barrier installed beneath tiles and slates. It can be used unsupported draped over timber rafters or counter battens, or fully supported over timber sarking or rigid insulation.

This product has an integral tape system for effectively sealing horizontal overlaps.

Features and Benefits

  • Classified as Low Resistance in accordance with BS 5250
  • Reduced condensation risk
  • Durable and resistant to damage from foot traffic
  • UV resistant
  • Temporary weather protection prior to tile or slate fixing
  • Contributes to weathertightness of a completed roof
  • Airtight when sealed for improved energy efficiency

Product Codes and Sizes

Product code: DLR120T 1.0 – 1.0m x 50m 

Product code: DLR120T 1.5 – 1.5m x 50m


Hambleside Danelaw’s Vapour Permeable Roof Underlay

Hambleside Danelaw can provide a range of roofing underlays suitable for both tile and slate, as well as for a range of wind zones.  There is a double taped version of the LR 120T, as well as heavier weights of underlay, such as the LR180, available for added protection.

To discuss our underlay options, please get in touch with us at sales@hambleside-danelaw.co.uk.


Danelaw LR120T Tile and Slate Roofing Underlay Datasheet
Declaration of Performance (DOP) Danelaw LR120T
DOP UKCA Danelaw LR120T
Danelaw LR120T 1 x 50m installation recommendations
Danelaw LR120T 1.5 x 50m installation recommendations
  • Product code
  • Colour
  • Made from
  • Length
  • Width
    1.0m and 1.5

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