Danelaw LR120 – Vapour Permeable Tile and Slate Roofing Underlay

Danelaw LR120 is a high quality low resistance pitched roof underlay for slate and tile roofs suitable for unsupported applications draped over rafters or fully supported over timber sarking or rigid insulation in compliance with the requirements of BS 5534 Slating and tiling for pitched roofs – Code of Practice, and BS5250 Management of moisture in buildings – Code of practice.

Features and Benefits of our Pitched Roof Underlay

  • BBA Approved for use in warm and cold roofs (Certificate number 17/5426)
  • 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: DLR120 1.0 – 1.0m x 50m 
Product code: DLR120 1.5 – 1.5m x 50m

Hambleside Danelaw offer a range of low resistance underlays and membranes, providing the LR180, which is a heavier weight for added security, as well as the LR120TT which has an integral tape to tape system for effectively sealing horizontal overlaps in moist and dusty conditions.

To learn more about our underlays take a look at our underlay guide, or get in touch with us at techelp@hambleside-danelaw.co.uk.


Danelaw LR120 Tile and Slate Roofing Underlay Datasheet
BBA 17 5426 Certificate Membrane – LR120 and LR150
Declaration of Performance (DOP) Danelaw LR120
DOP UKCA Danelaw LR120
Danelaw LR120 1 x 50m label and installation recommendations
Danelaw LR120 1.5 x 50m label and installation recommendations
Danelaw Ventilation for Tile and Slate Roofs Product Guide
  • Product code
  • Colour
  • Made from
  • Length
  • Width
    1.0m and 1.5

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