Icopal Anderson Torch on VBL Venting Base Layer

Product Code 1850
£53.73
Incl. VAT £64.48

Est. delivery: 2-3 Working Days

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  • Venting base layer manufactured using a perforated glass fibre reinforcement
  • Coated on both sides in bitumen
  • Length 20m x width 1m
  • Roll weight 30kg
  • Thickness 4.0mm

Icopal Anderson Torch on VBL Venting Base Layer

Designed to serve as an integral component in modern high-performance bituminous built-up roofing systems, you won’t find a better choice than the Icopal Anderson Torch on VBL Venting Base Layer. The Torch on VBL Venting Base Layer boasts a wide range of exceptional features that makes it one of the most popular choices for homeowners and roofing specialists nationwide.

The Torch on VBL Venting Base Layer sports a perforated design with 25mm holes staggered at 75mm centres. The useful addition of a side over laps is the result of a non-perforated strip left on at both edges for your added convenience. Another nifty little option to make your life that little bit easier is the inclusion of thermofusible film on the underside. This prevents the felt from sticking in the roll.

The Anderson Torch on VBL Venting Base Layer is used as a preparation layer. Its purpose is to provide a partial bond of reinforced bituminous torch-applied membranes to selected substrates and insulation boards. The perforated design allows for the torch-on felt to be spot bonded to the roof and also acts as a vapour dispersion layer. The material does not suffer from insect or pest damage, and is not affected by moss, fungi, lichen, mould or bacteria.

Each of these products is coated on both sides in bitumen and finished with fine silica sand on the upper surface. The Anderson Torch on VBL Venting Base Layer is compatible with most building materials with the exception of Hydrocarbon solvent based products such as Creosote. These base layer felts measure 20m length x 1m width, feature a 4.0mm thickness and a total roll weight of 30kg.

All of these base layers are certified to the standard of BS 8747:2007 – Reinforced Bitumen Membranes (RBM’s) for Roofing. This is your guarantee that you are receiving a high-quality product that will ensure that your roof provides you with many years of reliable service. Furthermore, the Anderson Torch on VBL Venting Base Layer is manufactured under the UKAS Quality Management System and approved to ISO 9001:2008 standards.

This is also an environmentally friendly option as these base layers are certified under the Environmental Management System and approved to ISO 14001:2004 standards. To ensure the best possible results, all of these base layers are delivered in rolls in heat shrink bags which are carefully stood on end on wooden pallets.

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.