DCT-W41-5
EXTERNALLY INSULATED CLT WITH RAINSCREEN CLADDING WITH GEOVAP
CLT mass timber wall made water, air, and vapour tight by the ProctorGeo Vap 120 air and vapour retarder, externally insulated with a non-combustible DCT VulcanWool stonewool insulation, protected by a rainscreen cladding supported by the Nvelope engineered helping hand sub-framing system. The insulation is mechanically fixed with minimal thermal bridging, to form a continuous external insulation layer. As the CLT is not classified as fire protected timber this solution is not suitable for type A or B non-combustible wall construction.
Section J (NCC 2019) R-Value Calculator
DCT VulcanWool is a non-combustible high density mineral rock fibre stonewool insulation for use as external grade insulation with water shedding characteristics, designed for use in ventilated rainscreen facades and other thermal and acoustic wall, roof, floor and ceiling applications in residential and commercial buildings.
Nvelope Rainscreen Back Framing simplifies the complexity of modern building facades using a unique ‘helping hand’ bracketing system which is fixed to the substrate at set vertical and horizontal separations. Suitable for the most demanding facade materials, our range of Nvelope brackets, rails and rainscreen support systems are safe, economic and effective.
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.
