Anderson Flat Roofing Preparation Layers

The Anderson range of preparation layers are glass reinforced and coated with oxidised bitumen.

This is a range of products traditionally known as 'BS747 felts'. BS 747 has now been withdrawn and replaced with BS 8747: 2007 - Reinforced bitumen membranes (RBM's) for roofing - Guide to selection and specification.

Preparation Layers

  • Glass based
  • Available in standard or perforated

Product Availability

Product Code Description Roll Size Roll Weight
2002652 3B Glass Base Layer 1m x 20m 38kg
2002700 3G Perforated Glass Base Layer 1m x 10m 28kg
2002701  3H Perforated Glass Base Layer 1m x 20m 38kg
2000320 Torch-on VBL Venting Base Layer 1m x 20m  38kg


Icopal Insured Guarantees for up to 20 Years

Icopal Insured Guarantee

When installed to Icopal’s specification and by an Icopal approved contractor, comprehensive insured guarantee cover for up to 20 years is available.
Further information on the different levels of guarantee cover

Contact Icopal 0161 8654444

Find Local Support

To discuss your project in more detail please contact
Your Local Area Manager


Technical Support


0330 123 4585

Email: technical.uk@bmigroup.com


Sales Enquiries & Orders


0843 224 7400


0843 224 7401

Email: sales.admin@bmigroup.com

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