OneDek™ (RD5 Roof Deck)

OneDek™ (RD5 Roof Deck) OneDek™ (RD5 Roof Deck)

Our OneDek or RD5 Roof Deck panel combines into a single component the steel deck, insulation and substrate necessary for white single ply membrane or non-structural standing seam roof coverings, adding high R values and energy efficiency. It is an economical alternative to rigorous and expensive field-assembled roof deck systems.

Panel Thickness: 





Insulating Values (R):**





Panel Width: 40”

Panel Length: from 8’ to 50’ maximum.

Insulation Material: CFC-free foamed-in-place polyisocyanurate foam 2.1 to 2.5 pcf density.

Joint Configuration: overlapping.

Metal facings: 26ga galvanized steel (22ga, 24ga available).

Coatings: PVDF & SMP (other coatings available).

Accessories: fasteners, sealants, brake formed flashings.


**R-Value tested in accordance with ASTM C518/C1363 at 40oF mean temperature, adjusted for a windspeed of 15 mph.


OneDek™ (RD5 Roof Deck) OneDek™ (RD5 Roof Deck)


  • The top side substrate can be either primed steel or an approved flexible facer depending on the roof covering attachment requirements.
  • Allows for longer spans between supports and a working platform during installation.
  • Superior deflection resistance.
  • Pre-painted 26ga Imperial White smooth reflective interior.
  • Easier installation with fewer required trades.
  • Eliminates potential for interstitial condensation
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