Product Overview
This is our traditional reinforced kraft paper bitumen-bonded building paper laminate used within the construction industry, which meets the highest standard of BS 1521 materials, grade A1F.
Unlike many other recent developments in building membranes (eg breathable roof underlays and air leakage barriers), 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 A1F has naturally evolved over time including for example, vapour checks, as an underlay on uninsulated cladding, flat lead-sheet underlay, timber floor DPM and temporary protection.
Novia Ltd are the market leaders for building papers, so we can offer our expert guidance where required.
Novia A1F can be found on NBS Chorus and NBS Source software packages. Full information can be found for NBS specification with the table below. The links will open a pop up window with full specification information.
Key Features
- Bitumen, paper and reinforcement scrim laminate
- Suitable for permanent building applications
- Traditional product
- Standard roll sizes 1m x 25m and 1m x 50m
- Multi-use adaptable building product
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Installation Tips
As this product has many different uses, the installation will vary depending on the final use and would be down to the installer to ensure they are happy with any given application.