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Applications

Wall Applications

Insulco Vapa-Chek™ is also a proven insulation product for use in metal clad wall. Many factories, warehouses and retail outlets benefit from installing wall insulation – especially on east and west facing walls that experience significant heat gain in summer.

The inclusion of Vapa-Chek™ will further improve the comfort and productivity of those occupying the building and result in greater reductions in energy required to condition the space.

Commercial Building Applications

Flat Metal Roof

Vapa-Chek™	With ceiling (non-vented)		Without ceiling (1)
Vapa-Chek™	Summer	Winter	Summer	Winter
No insulation	R0.6	R0.4	R0.1	R0.1
55mm	R2.7	R2.1	R1.5*	R1.5*
75mm	R3.2	R2.5	R2.0*	R2.0*
100mm	R3.7	R3.1	R2.5*	R2.5*

Domestic Housing Applications

Pitched Metal Roof With Flat Ceiling

Vapa-Chek™	Summer		Winter
Vapa-Chek™	Vented	Non-vented	Vented	Non-vented
No insulation	R0.7	R0.5	R0.3	R0.4
55mm	R2.9	R2.7*	R1.8	R2.1*
75mm	R3.4	R3.2*	R2.3	R2.5*
100mm	R3.9	R3.7*	R2.8	R3.1*

Pitched Metal Roof With Cathedral Ceiling

Vapa-Chek™	Enclosed rafters (2)		Exposed rafters (3)
Vapa-Chek™	Summer	Winter	Summer	Winter
No insulation	R0.4	R0.4	R0.4	R0.4
55mm	R2.6	R2.0	R1.6	R1.5
75mm	R3.1	R2.5	R2.1	R2.0
100mm	R3.6	R3.0	R2.6	R2.5

1. R0.2 is attributed to the reflective foil as     recommended in BRANZ Appraisal certificate     No.00/016. which concludes that occupied buildings
    will have air circulation adjacent to the foil laminate so
    still air values do not apply.

2. Enclosed rafter systems have an enclosed airspace
    below the Vapa-Chek™ of at least 100mm.

3. Exposed rafter systems have no airspace, but it
    is assumed that the insulation is allowed to recover to
    its full thickness (i.e. battens are equivalent to
    insulation thickness).

*Endorsed calculations to AS/NZS4859.I

Note: The above calculated system thermal resistance should be used as a guide only and are based on BRANZ accepted assumptions and Appendix E of AS2627.I. The calculations do not take into account thermal bridging effects at battens, purlins, etc.

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