Our History

Tilcor has its roots grounded in the roofing industry in Auckland New Zealand since the mid 1900’s.

Originally making concrete blocks and concrete tiles back in 1942, the business soon grew and became known as Ross Concrete Products, and later Ross Roofing. Over the last 70 years, the company has been evolved and transformed into a new stage called Ross Roof Group, which manufactures the Tilcor brand for America, Europe, Africa, Middle East and the Metrotile brand for Asia and Oceania.

Tilcor Roofing Systems History
1942

“Delta Tile Company” owned by John Ross started making Concrete Blocks and Concrete Tiles by hand in Hamilton.

1946

“Ross Concrete Products” owned by Bob Ross started making Concrete Blocks in Takanini


1949

RCP started making Concrete Roofing Tiles in Takanini.

1958

Started the company “Ross Roofing Ltd”

RRL became one of the 1st agents in NZ for LJ Fisher Decramastic tiles and subsequently became the largest agent in NZ.


1960

RRL became an agent for ‘Alex Harvey Industries’, which made AHI roofing tiles.

1965

RRL became agent for Gerard.


1972

Started Rosscrete Concrete Tiles Ltd and purchased an automated concrete tile machine from Sweden.

1973

RRL started manufacturing Longrun roofing in corrugated and decking type profiles and also roll-forming spouting.


1976

RRL started manufacturing Longrun roofing in California, USA.

1986

RRL sold to Humes Australia.


1987

RRL started business again due to Humes closing their NZ operation.

1989

Started Metrotile (NZ) Ltd manufacturing stone-coated and pre-painted roofing tiles.


1992

RRL started manufacturing Rosscrete Concrete Tiles again.

1994

Started Ross Brick and Pavers Ltd and importing bricks from Australia.


1995

Malaysian Roofing Industries start manufacturing Metrotile products under license.

1998

‘Metrotile Europe’ was formed and manufacturing tiles in Belgium.


2000

‘Metrotile USA’ was formed manufacturing steel tiles in California, USA.

2008

Ross Roofing, Rosscrete Concrete Tiles and Ross Brick and Tiles was sold to CSR Building Products.


2010

Ross Roofing, Rosscrete Concrete Tiles and Ross Brick and Tiles was sold to CSR Building Products.

2011

Started Tilcor Roofing Systems to supply the European, USA, Africa and Middle East markets from our NZ factory.


2012

Opened office in Dubai to service and manage the Africa and Middle East Markets.

2014

Opened office in Poland to service and manage the European Markets.


2015

Opened office in Japan to service and manage Asia markets.

Opened office in California to service and manage the North America markets.

Officially changed company names to ‘Ross Roof Group Ltd’