Spiralite Ductwork and the installation process is compliant with all relevant standards, guidance and regulations, including DW144. The Spiralite ductwork system is able to meet (and comfortably exceed) the air leakage requirements and pressure classifications that are referenced in DW144 (Specification for Sheet Metal Ductwork), BS EN 1507 and BS EN13403 when following the principles of the product specification manuals and the fabrication guidelines.
DW143 is a Practical Guide to Ductwork Leakage Testing (based on DW144 – Specification for Sheet Metal Ductwork) and all the testing requirements can easily be satisfied when applied to our pre-insulated ductwork.
Spiralite is rated as Class C at 2,500 pa, significantly more airtight and pressure resistant than GSS ductwork (the same leakage rate at 2,500pa as GSS ductwork had at 500pa), and in the tests did not leak at 7,667 Pa.
Kingspan KoolDuct, from which Spiralite is fabricated, is Class 0 and Euroclass B S1 D0 – being Main Class B and Smoke Class 1 (the best of 1 to 3) and Flaming Droplets class 0 (the best of 0 to 2). It is also the only phenolic insulation panel to have a UL listing, which requires the highest standards of fire and smoke performance.
Spiralite has optimal sustainability and environmental credentials :
Please download the Compliance Sheet for current compliance data.