Novia B1F Reinforced Kraft Union Liner 1.25m x 50m (62.5m2)

This is our traditional reinforced kraft paper bitumen-bonded building paper laminate used within the construction industry which meets the requirements of BS 1521, grade B1F (Class B with reinforcement).

Unlike many other recent developments in building membranes (eg breathable roof underlays), BS 1521 does not give guidance on suitable use, and as such this product is a generic material, serving a wide range of end-user defined applications.

However, typical usage for B1F has naturally evolved over time including for example, separation layers for insulated screeds, bond breaks, temporary protection and garden buildings.

Key Features:

• Bitumen, paper and reinforcement scrim laminate
• Lowest cost reinforced product
• Multi-use adaptable building product
• Made to BS 1521 Class B