Most commercial roofing packages combine sarking and insulation from whichever suppliers happen to have the best price or stock on the day — which works fine until a compatibility question comes up between two products that were never designed with each other in mind. PREZO Wrap and the ThermaRoof range are manufactured by us specifically to work together, and there's a real specification advantage in treating them as a single coordinated system rather than two separate line items.
What "coordinated system" actually means in practice
When sarking and insulation come from the same manufacturer with the same underlying product philosophy, facing types, permeability ratings and installation sequencing are designed to complement rather than duplicate or conflict with each other. PREZO Wrap's reflective performance and vapour permeability rating (AS/NZS 4200.1 compliant) is specified knowing what ThermaRoof blanket sits alongside it in a typical roof build-up — rather than each product being independently optimised without reference to what else might be in the system.
Why this matters for compliance documentation
NCC Section J and similar compliance documentation often references total system R-value and vapour management as a combined outcome of the full roof build-up, not any single product in isolation. Specifying a coordinated system from one manufacturer simplifies producing that documentation — the combined performance data is more straightforward to source and verify than trying to reconcile independently-tested products from different suppliers into a single system claim.
Supply consistency on our own range
Because we manufacture PREZO Wrap and the ThermaRoof range ourselves, we control supply timing and specification consistency in a way that's harder to guarantee on sourced third-party product subject to import timing, allocation, or manufacturer changes. On program supply jobs where consistent product specification across a multi-stage build matters, this reduces the risk of a mid-program product substitution because a third-party line went out of stock.
Where the own range fits in a typical spec
- PREZO Wrap as the roof sarking layer — reflective, vapour-permeable, sized for standard 81m² roll coverage.
- ThermaRoof Blanket / HP / Tuff / Antiglare as the insulation layer, selected by R-value, clearance and exposure per our ThermaRoof R-value guide.
- Both integrated with the same manufacturer's specification support, reducing the number of separate technical data sheets and compliance claims a builder needs to reconcile.
Builders sometimes assume "own brand" means a cheaper, lower-spec alternative to name-brand product. For PREZO Wrap and ThermaRoof, own-manufactured means we control the spec and the supply — not that we've compromised on performance to hit a price point.
When third-party products still make sense
We're not suggesting every job should exclusively use PREZO's own range — some jobs have specific brand requirements, existing system compatibility needs, or specification history with a particular third-party product that makes sense to continue. The point is that where the spec is genuinely open, a coordinated own-range system removes a layer of compatibility risk that mixing suppliers introduces.
Talk to us about your next roofing pack
If you're speccing a new commercial roofing package and want the simplicity of a coordinated sarking-and-insulation system with consistent supply, ask us about PREZO Wrap and ThermaRoof together — including how the combined system documentation supports your NCC Section J compliance submission.
