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Roofing Felts

3B Bonding Underlay

3B Bonding Underlay

Quantity Range

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1 - 9


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10 - 24






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3B Bonding/Base Underlay Felt is a Glass Reinforced Traditional Bitumen Roofing Felt for use as an underlay or intermediate layer.

Traditional used as an Underlay/Tack Down or First Layer within a Flat Roof System.

Roll Size: 20m x 1m.

Please Note:

* The rolls may be laid down on their sides on the pallet, If you are only ordering a few rolls. This is to comply with the courier own rules and to stop the rolls falling over during there transportation. Full pallet quantities will be shipped standing on there ends. This means the rolls may flatten a little whilst laid on their sides but this will not effect the installation or performance of the material.​​​​

* We stock a variety of brands in this product type and will supply whatever is in stock at the time. They are all of equal quality, specification and size. The image is for illustrative purposes only. If you require a specific brand then please do get in touch and we will try to supply your requirements. 

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    Pour & Roll
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