LONGRUN ROOFING SPECIALISTS
Dan Cosgrove Ltd was one of the first manufacturers of longrun roofing iron in the South Island, commencing back in 1966 and has continued to update various machines over the years with the latest technology. Today we manufacture a range of residential and commercial profiles and accessories based in Timaru for supply throughout the South Island.
The roofing, spouting and flashings are manufactured from either galvanised steel, alloy and zinc coated steel or UniSteel® UltraZen® pre-painted steel in longrun lengths except for flashings which are restricted to a maximum of six metre lengths. We stock a range of 19 standard colours. All products are available as a supply only or as a supply and fit with the use of outside contract labour.
Another product in demand today is Baby Corrugated Iron which is used in a wide range of areas for both external or internal use.
ROLL FORMING
Dan Cosgrove’s have been manufacturers of roofing iron for over 40 years and are experts in their field. We are stockists of UniSteel® UltraZen® pre-painted steel. With a full colour range which also includes doubled sided painted product, alloy and zinc coated steel. We manufacture:
- Five rib
- Corrugate
- Fascia
- Guttering
- Ridge cap
- Valleys
- Baby iron
- Snow straps
- S/S Handrails
UltraZen® INFO
Through the development of the UltraZen® brand, UltraSteel® has become not only a steel supplier but a resource for architects, builders, developers, installers, and home owners to achieve their creative vision.
Strong collaborative partnerships with industry leaders has enabled UltraSteel® to develop innovative ideas in coating technology to competitively supply high quality product to transform the landscape of the New Zealand building industry.
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Click here to view all the UltraZen® pre-painted steel swatches.
AVAILABLE COLOURS
UltraZen® provides colour options with additional durability, thanks to the combination of an extra thick 200 gsm coating of zinc aluminium alloy, in combination with our advanced protective paint system. It is the recommended product for locations closer to the coast.
Corrugated & Cosdek Iron
Ridging
Arpon Flashings
Spouting
Ribroof 18
Valley





































