NBS Source
List your products
AlkorPlus® 35121

A composite PVC/ fleece laminate protection layer, designed for use primarily on warm ballasted roofs and inverted roofs.

AlkorPlus® 35121 is installed where round washed ballast is to be used; or under paving slabs and timber decks in terraced or heavily trafficked areas.


The material may be laid with either face uppermost, depending on the application. It is usually loose laid with a 50 mm overlap which may be welded or joined with AlkorPlus® 81038 liquid PVC. The perimeter of the protection layer is terminated just below the level of the ballast, slabs or decking.

AlkorPlus® 35121 is not designed for prolonged exposure to Ultra Violet light.

General information
Uniclass 2015
Pr_25_57_90_29 Fabrics for tensile applicationsPrimary

J42/385 Filter layer

Specification data - Fabrics for tensile applications
Product Reference

AlkorPlus® 35121



AlkorPlus® 81038 liquid PVC

Standard product features


0.6 mm thick PVC with 200 g/m² polyester fleece.




  • Width: 2.05 m.
  • Roll length: 20 m.
  • Weight: 1 kg/m².
  • Roll weight: 40 kg.

Third party certifications
Similar products from RENOLIT Cramlington Ltd