Selecting the right material is important.
What’s the better choice?
It’s a question thousands of New Zealand builders and renovators ask themselves every year. It’s a significant decision to make, so here we reveal the simple truths:
|Colour Performance||Standard COLORSteel® Steel tested in lab conditions simulating natural weather shows colour change||
Monier concrete tiles tested in lab conditions simulating natural weather exposure shows better colour performance than standard COLORSteel® Steel 4
Lifetime colour performance on terracotta tiles
|Rust||Metal may rust and may corrode to perforation(holes)||Concrete and terracotta tiles don't rust|
|Strength Durability and Longevity||Tested for 50 years||Concrete and terracotta tiles are a proven roofing material which have been in use for over 100 years|
|Warranty||Metal may rust and may corrode to perforation(holes)||Concrete and terracotta tiles don't rust|
|Warranty||Up to 36 years warranty on standard COLORSteel® Steel, which may be reduced if your roof:
||50 year performance warranty on concrete roof tiles 50 year performance and colour warranty on terracotta roof tiles|
|Storm Endurance||Lightweight and more susceptible to wind lift and upheaval in extreme weather events5||Performs better than sheet metal in extreme wind conditions as wind uplift forces are significantly lower in tiled roofs5.|
|Denting / cracking||May dent when walking across it||A concrete or terracotta tile roof will not dent or warp. It will not crack if walked on in the correct place|
|Embodied Energy*||Metal roofing has a higher embodied energy6, which means more energy is consumed in all processes involved in manufacturing a metal roof*||Concrete and terracotta have lower embodied energy6, which means less energy is consumed in all processes involved in manufacturing a tiled roof.|
4AWTA product testing completed July 2016. Testing ran for 2,000 hours with cycles of 8 hours UV and 4 hours condensation exposure.
5Boughton, G, Shoalwater and Roleystone WA tornadoes – Wind damage to buildings (2008).
6Lawson, B, Building materials, energy and the environment: towards ecologically sustainable development (1996)
* Embodied energy is the energy consumed by all of the processes associated with the production of a building, from the mining and processing of natural resources to manufacturing, transport and product delivery