Icopal Anderson 3B Glass Fibre

Product Code 253
£29.89
Incl. VAT £35.87

Est. delivery: 2-3 Working Days

View delivery options
  • Glass reinforced bitumen membrane
  • Suitable for roofs with a pitch between 15 – 45 degrees
  • Roll length 20m
  • Roll width 1m
  • Sand finished

Icopal Anderson 3B Glass Fibre

Introducing the outstanding Icopal Anderson 3B Glass Fibre Underlay – designed to provide maximum performance at a price that won’t hurt your budget. Each of these products has been created to serve as an integral part of a bitumen built-up roofing system. Whether as a fully bonded preparation or intermediate layer, the Icopal Anderson 3B Glass Fibre Underlay can be used in conjunction with Icopal bitumen shingles. This makes it ideal for use as part of a pitched roof application.

These products have been specially designed to work with any roof with a pitch of between 15° and 45°. The Icopal Anderson 3B Glass Fibre Underlay is incredibly versatile and can be easily cut and worked to fit roofs of all shapes and sizes. This makes it a great choice for all manner of uses including garages, extensions, workshops and garden buildings.

Manufactured to an exacting standard, the Icopal Anderson 3B Glass Fibre Underlay is designed to be incredibly durable. Each underlay is coated with oxidised bitumen and is glass reinforced so you will have complete peace of mind that your roof will remain fully operational for many years to come. In fact, the life expectancy of the Anderson 3B Glass Fibre Underlay is up to 20 years!

All Anderson 3B Glass Fibre Underlay comes in 20m rolls each with a width of 1m, a nominal weight of 1.8kg/m2 and a total roll weight of 40kg. Each of our Glass Fibre Underlay products is sand finished and is fully approved to BS 8747:2007 – Reinforced Bitumen Membranes (RBM’s) for Roofing standards. Plus, these products are approved to ISO 9001:2008 standards and manufactured under the UKAS Quality Management System.

So, if you’re searching for a high-quality, reliable roofing underlay, look no further than the Icopal Anderson 3B Glass Fibre Underlay system.

FREE DELIVERY on Roof Windows and Accessories on orders over £50 (Exclusions apply)

All other Delivery Charges are based on weight and location, please add products to your basket to calculate shipping.

A small amount of product lines from particular manufacturers listed below will incur a supplier delivery surcharge.


Next Day Delivery available on orders of stocked items if placed before 2pm

Deliveries will be made between 8am and 6pm. Delivery times apply to weekdays only.


Delivery of Windows to England, Wales, and the majority of Scotland:
Basket Value Price (£)
0-£50 £9.95
Over £50 Free Delivery

Delivery of Windows to the Channel Islands, Scottish Highlands, Northern Ireland, Isle of Man

(postcodes IV, HS, KA27-28, KW, PA20-49, PA60-78, PH17-26, PH30-44, PH49-50, ZE, AB)

Basket Value Price (£)
0-£249 £20
Over £250 £50

It is with regret that we cannot offer a service to these areas for orders over 126kg but please call us on and we will attempt to organise a delivery to your custom if required.


Supplier Delivery Charges

Please note the following supplier delivery surcharges:

Ariel Plastics = £25.00

Britmet Tileform= £35.00

Lead Products(orders under 250kg) = £50.00

Marley Eternit roof tiles (orders under a pallet) = £75.00

Marley Eternit sheeting (exclusions apply) = £50.00

Redland = £100.00

Palram = £25.00

Please phone us on if you are unsure.