Flashings and Valleys on Slate Roofs in Melbourne

What flashings and valleys on slate roofs in Melbourne actually involves

The battening and nailing system as well as the proposed materials for flashings and valleys should be documented as part of the application. Traditionally, lead flashings were used. The use of lead flashing today can pose occupational, health and safety concerns, particularly where rainwater is collected for drinking purposes. In most situations, galvanised steel flashings may be an acceptable alternative. The sheet is dated July 2023.

Which regime flashing falls under

Roof plumbing, which covers gutters and flashings, is a separate Victorian regime from domestic building work, and this site has not read it. This page therefore says nothing about who may fit flashings: ask whoever quotes which registration covers them.

Ask the provider what the flashings and valleys are made of in the quote, and whether any lead is being kept or replaced.

Flashings and Valleys on Slate Roofs in Melbourne — common questions

Is lead flashing still used on slate roofs?

Traditionally, lead flashings were used. The use of lead flashing today can pose occupational, health and safety concerns, particularly where rainwater is collected for drinking purposes.

Is there an alternative to lead?

In most situations, galvanised steel flashings may be an acceptable alternative.

What should an application document?

The battening and nailing system as well as the proposed materials for flashings and valleys should be documented as part of the application.