This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note specifies the regulatory framework requirements for roof (stormwater) plumbing, and provides guidance on:

• What is roof (stormwater) plumbing work?
• What is not classified as roofing (stormwater) plumbing work?
• What types of roofing (stormwater) material are acceptable?
• Supporting documents for roof catchments to meet the deemed to satisfy requirements

This Practice Note specifies the requirements for the installation of box gutters, and provides guidance on:

• Defining a box gutter
• Collaboration on the design of box gutters
• Design and installation parameters for box gutters
• Requirements for a box gutter support system
• Overflow provisions in a box gutter
• Expansion provision for box gutters
• Other considerations when installing a box gutter

This Practice Note specifies the requirements for the installation of eaves gutters, and provides guidance on: 

• What is an eaves gutter?
• What material and products are fit for purpose?
• Gutter installation examples

This Practice Note specifies the requirements for the installation of downpipes, and provides guidance on:

• What is a downpipe?
• What materials and products are fit for purpose?
• External downpipe locations
• Internal downpipe installations
• Downpipe support systems

This Practice Note specifies the requirements for the installation of flashings, and provides guidance on:

• What is a roof flashing?
• What material and products are fit for purpose?
• Types of roof flashings.
• What are the requirements for a traditional raked joint and step method?
• What are the requirements for a sloping wall cut method?
• What are the requirements for pressure flashings?

This Practice Note specifies the requirements for roof sizing and calculations for a complete roof drainage system, and provides guidance on:   

• The steps required when sizing a roof catchment drainage system
• Design example of a roof catchment drainage system
• Typical types of roof catchment installations
• How to calculate roof sizing

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note (formerly Technical Solution Sheet) is currently under review.

This Practice Note provides guidance on energy efficiency of solar hot water systems when using this option to meet the requirements of the Plumbing Regulations 2018 and the National Construction Code 2019.

The content below provides guidance on:

• Requirements for solar water heaters
• Compliance with the Plumbing Regulations 2018
• Installation requirements