Technical Note 1
AS/NZS 4859.1:2018, NCC 2019 SECTION J AND AGED R-VALUES Tech Note 01 Changes in the Australian National Construction Code (NCC), 2019 with respect to Energy Efficiency (Section J), came into effect as of May 1st, 2020 after a transition period of one year. A more rigorous Section J lays out the requirements for the energy […]
Technical Note 2
THERMAL ISOLATOR & SECTION J0.5 REQUIREMENTS Introduction This technical note provides details of the Nvelope framing system, the Nvelope Thermal Gasket, its R-value and its relevance to the NCC 2019 Section J. Requirements of NCC 2019 Section J0.5(c). As can be seen in J0.5 (a) a thermal break is required only where “a wall lining […]
Technical Note 3
Combustibility of DCTech Vacuum Insulated Panels (VIP) Introduction When something sounds too good to be true, it usually is. Since the NCC 2016 Amendment 1 clarified the requirement for all elements of type A and type B wall construction, including the insulation, to be non-combustible, DCTech have been receiving many enquiries about our market-leading vacuum […]
Technical Note 4
Wall of Death Tech Note 04 One of the most common enquiries we get asked is how to effectively insulate a single skin masonry wall or how to rectify one that has moisture or sinister odours emerging from behind the plasterboard lining. Since NCC 2016 Amendment 1 clarified the requirement for all elements of type […]
Technical Note 5
Galvanic Corrosion Tech Note 05 Galvanic Corrosion is a process of when two different metals of equal surface area are combined in the presence of an electrolyte (a fluid that conducts electricity). Hydrogen is absorbed at the cathode and a current flows, thus, the less noble metal migrates into the solution (the ‘anode’ is attacked). […]
Technical Note 6
Compliance & Comparison of Limited Combustability Sarking Tech Note 06 NCC 2019 Volume 1Part C1.9 (e) The following materials may be used wherever a non-combustible material is required: (vi) Sarking-type materials that do not exceed 1 mm in thickness and have a Flammability Index not greater than 5. (vii) Bonded laminated materials where—(A) each lamina, […]
Technical Note 7
Temperature and UV Resistance Tech Note 07 Applications ProctorGeo EnkaVent represents a breakthrough in roofing underlayment technology. It is a three-dimensional multi-use mat, made of continuous nylon filaments fused at their intersections. The product can be used in metal and ballasted roofing applications where spacing of the roof will provide the ventilation and drainage needed […]
Technical Note 8
NCC Compliance: Roofspace Ventilation and Timber Sheathing Boards Tech Note 08 It is not technically incorrect to describe any timber sheathing board as being vapour permeable, but the question remains just how vapour permeable the different boards are. Many factors such as thickness, board type, number of layers of adhesive, timber type, adhesive used, moisture content and […]
Technical Note 9
Technical Note 9 Don’t believe everything you hear about micro-porous and monolithic membrane technologies. Try our short quiz and see how Monolithic you are! Over the past few years, there has been a lot of misinformation about the performance characteristics of different vapour permeablemembrane technologies. Much has come from suppliers of products promoting their particular […]