IKO Glass Fibre Underlay (3B)

A modified bitumen membrane with glass fibre base used as an underlay. It is sand finished on both surfaces. This product was formerly referred to as a 3B membrane.

Features and benefits:

• Multiple-use - can be bonded with both hot charge bonding bitumen, cold applied bitumen felt adhesive or as a nailed boarded pitched roof underlay.

• CE marked.

Applications:

The product can be used as an economical underlay or intermediate layer within a built-up felt roofing system (cold and warm roofs). This product is also used as an underlay to bitumen shingles in a boarded pitched roof application. All flat roof waterproofing detailing must be undertaken as separate flashings.

Receiving substrates should be fully primed with IKOpro Quick Dry Primer. When using as an underlayer or intermediate layer, the product should be bonded with IKO Easy Melt Bonding Bitumen.