Earthwool Dritherm 37 Standard

Product code: N/A
Llandudno Stock: 8 Ruthin Stock: 52
Llandudno Junction No StockNo Stock
Ruthin No StockNo Stock
Inc. VAT

Not in stock in your local depot? Please call or email us, we’ll be happy to get it sent over for you.

For thermal insulation in residential and non-residential masonry cavity external walls, Earthwool DriTherm Cavity Slabs have a special additive to make the product water repellent. They are 455mm wide to suit standard vertical wall tie spacings allowing a closed joint with adjacent slabs.

  • Euroclass A1 non-combustible
  • For use in external masonry cavity walls
  • British Board of Agrément approved for use in all exposure zones
  • Water repellent
  • Slabs 'knit' together, eliminating air gaps between adjacent slabs


  • 50mm - 6.55m2
  • 65mm - 5.46m2
  • 75mm - 4.37m2
  • 85mm - 4.37m2
  • 100mm - 6.55m2
  • 125mm - 3.28m2
  • 150mm - 4.37m2

Click and Collect is available at both depots, free of charge on all orders.

Local delivery can be made to the majority of North Wales at a cost of £10 +VAT, free of charge for orders over £50. You will be asked for your postcode before checkout to see if delivery is available to your location.

Returns can be made in person to either of our branches, Llandudno Junction or Ruthin.

For any more information, please have a look at our Delivery and Returns sections.