- Heavy duty — heavier gsm construction for superior tear resistance and strength on large-span roofs
- Fire retardant — complies with NZBC C/AS2–C/AS6 surface finish requirements
- Self-supporting — suitable for roof pitches 3° and above without netting in most applications
- Dual-use — approved for both roof and wall applications
- High vapour permeability — manages condensation and moisture vapour in roof and wall cavities
Ventia Platinum Plus is a premium heavy-duty fire-retardant synthetic underlay for demanding residential and commercial roof and wall applications. Its heavier grammage provides superior strength and tear resistance compared to standard-grade underlays.