Millboard ring supports are designed for use in low height areas, creating airflow and protecting the roof membrane, while allowing water to flow off easily and prevent pooling.
Number per m2*
Rubber ring 9mm: PPR09
Plastic ring 15mm: PPR15
Spacers 3mm: PPR03**
* Approx number – quantities may vary according to project design
** This product is only suitable for the 15mm ring support