0845 034 6008
Technical Support: 8.30am to 5.30pm

D2000 GF3 Sanded Underlay

Manufactured from polymer bitumen modified with SBS polymers and reinforced with a lightweight glass fibre core for exellent flexibility.

  • Normally used as a high quality underlay with a mineral cap sheet, but often also used as a VCL in insulated systems.
  • Available in film/film for use as a vapour control layer or film/sanded upper layer for use as an underlay.
Full Service
Full Service

Our product support is second to none meaning you can be sure our service doesn't end upon delivery on your order.

IOS Accredited
ISO Accredited

We are ISO 9001 registered to reinforce our strong operational process and commitment for continual improvement.

Manufacturer & Distributor
Manufacturer & Distributor

The ultimate range of roofing, plastering and construction products and consumables.

Delivery Service
Delivery Service

An industry leading, reliable 2-3 day standard service with a next day option available on request.