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DCT-F05-1

INSULATION BELOW SLAB ON GROUND OR RAFT

A highly moisture resistant, high compressive strength XPS insulation is laid directly on the ground. For moisture management, a vapour barrier is placed over the insulation prior to pouring the floor slab.

Section J (NCC 2019) R-Value Calculator

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ProctorGeo Vap120 is a light duty air and vapour control layer. 

Vapour and air control layer shall be ProctorGeo Vap120 vapour and air retarder membrane, compliant to AS/NZS 4200.1:2017, fixed in accordance with the product user guide. AS4200.1:2017 Classifications: Light Wall Duty; Water Barrier;  Class 2 Vapour Barrier;  AS1530.2 Flammability Index 5; Thickness 1.0mm; Air barrier; Non-conductive; Non-reflective. Vapour Resistance to ASTM E96(B) 49 MNs/g. 

DCT GA 300 is a closed cell high compressive strength, low moisture absorption extruded polystyrene (XPS) general application board for insulating roofs, walls and floors in commercial and residential applications 

The insulation shall be DCT XPS GA300 [ …mm] Extruded Polystyrene (XPS) foam panel with minimum compressive strength (min) 300 kPa (AS 2498.3 = 350 kPa average) and water absorption: < 0.3%. DCT XPS GA300 Extruded Polystyrene (XPS) is manufactured under licence for DCTech. 

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