Request to members for Quotes: Performance Solution - Roof Drainage Parameters

This Approach to Market (ATM) is for the provision of: 
A Performance Solution In accordance with NCC 2019 for the sizing of Roof Drainage systems outside the DTS the parameters of AS/NZS 3500.3 based around the extensive calculations produced by Ken Sutherland at www.roof-gutter-design.com.au 

For full details and instructions for the submission of quotes, please see the following PDF.