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Asbestos roofs

Common Types of Asbestos Roofs in New Zealand

How to recognise the four common asbestos roof types in NZ – Decramastic tile, residential and commercial Super Six, and shingle – and how to replace them.

JP Franklin asbestos team 2 min read Updated First published

Decramastic tile roof being removed and replaced in Auckland

Quick answer

There are four common asbestos roof types in New Zealand: Decramastic (pressed-metal) tiles from the 1960s–80s, residential Super Six, commercial Super Six/Super 8, and fibre-cement shingles. All become more brittle with age. Decramastic and Super Six roofs are usually replaced with long-run Colorsteel or new metal tiles; shingle roofs with asphalt shingles.

Common Types Of Asbestos Roofs In New Zealand

There are 4 main types of asbestos roofs – Decramastic Tile, Super Six (Residential), Super Six (Commercial) and Asbestos Shingle Roofs which present their own dangers & require different types of expertise to deal with them. Read below to find out more about these roofs!

Decramastic Tile Roofs

Decramastic Tiles are scallop-shaped metal tiles also known by other names such as pressed metal tiles, Decrabond, and ‘stone chip roofs’. Decramastic Tile roofs were manufactured and widely used in New Zealand during the 1970s and 1980s. Due to the presence of asbestos, Decramastic Tiles are no longer manufactured and have been replaced by other types of metal tiles. There are still many original Decramastic Tile roofs on properties in New Zealand but as they are particularly vulnerable to deterioration over time, and with new laws in NZ regarding asbestos, there has been a boom in the maintenance and replacement of these in recent years.

Decramastic tile roofs are best replaced with either new metal tile roofs or with a colorsteel longrun roof.

Super six asbestos roof removal and replacement in auckland
Super six asbestos roof removal and replacement in auckland

Super Six Roofing

Super Six and Super 8 roofs were once widely used in NZ to provide fire resistant, cost effective roofing for industrial, commercial and residential buildings. Super six was a very brittle roofing type when it was first released and after years of dealing with NZ weather it has become increasingly more so, meaning we 100% advise any person who has a super six roof to be cautious of breaking the sheets.

Super six can be easily replaced with colorsteel roofing as it follows the same general construction method.

Contact us for advice and find out why JP Franklin are a leading Auckland company for everything asbestos!

Asbestos Shingle Roofing

Asbestos Shingle Roofing or Fibre Cement Shingle Roofing was less commonly used in NZ than the other types of ACM roofing. They often resemble a slate tile roof and can be extremely fragile and hard to work on. Usually the best replacement roof type for a shingle roof would be to replace it with another new asphalt shingle roof.

Asbestos shingle roof replacement project in Auckland
Asbestos shingle roof replacement project in Auckland

Frequently asked questions

Do Decramastic tiles contain asbestos?

Many Decramastic and other pressed-metal tile roofs made from the 1960s to the 1980s contain asbestos, usually chrysotile (white asbestos) in the coating or underlay. A lab test confirms it.

What is Super Six roofing?

Super Six is a corrugated asbestos-cement sheet roofing that was widely used on New Zealand homes, sheds and commercial buildings until the 1980s. It is brittle and should never be walked on without proper crawl boards and fall protection.

Official guidance

This guide is general information, not health, legal or engineering advice. For your property, talk to a licensed asbestos professional. Originally published on jpfranklinroofing.co.nz/asbestos-roof-removal-repair-auckland/.

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