Novia A1F Building Paper

• Roll sizes: 1m x 25m & 1m x 50m
• A traditional reinforced kraft paper bitumen-bonded building paper laminate
• Meets the highest standard of BS 1521 materials, grade A1F, suitable for permanent building applications
• Multi-use adaptable building product
• A generic material for use in the construction industry, serving a wide range of end-user defined applications.

Novia A1F Building Paper is best suited for internal lining and protection applications where a high-quality, fibre-reinforced bitumen-impregnated paper is required. Manufactured to BS 1521 Grade A1F standards, it offers superior strength and durability compared to lower-grade building papers, making it ideal for use as a temporary protective layer, cavity lining, or separation barrier in timber frame and general construction projects. While it provides basic moisture resistance, Novia A1F is not intended to act as a primary vapour control or breather membrane but serves as a reliable, robust solution for internal lining and protective needs.

Can it be used permanently?

Yes! Unlike lower-grade papers (B1F/B2), A1F is suitable for permanent installation—including as a vapour control, waterproof underlay, or damp-proof membrane.

What are the environmental resistance properties?

It’s designed to resist wet conditions, chemicals from plaster and cement, mildew, rot, insects, and vermin—making it durable in demanding environments.

Can it be used under lead or metal roofing?

Yes—it’s commonly used as a flat lead-sheet underlay or backing for metal cladding, thanks to its waterproof, reinforced structure.