Concrete and clay/terracotta
Want a roof that’s durable and not prone to corrosion or warping? You’ll want to consider concrete or clay/terracotta. They can be quite heavy – especially compared to an asphalt roof – meaning you'll likely need to up the structural support. But, they're less susceptible to high winds and capable of lasting for at least 50 years.
If your home requires a curved or flat roof, a membrane roof could be the way to go. They’re extremely light, easy to install and repair, and resistant to a range of climates. Oh, membrane roofs are also environmentally friendly.
You’ll find slate roofs in most parts of the world – and for good reason. Whether in a seaside village or desert hamlet, genuine slate roofs are so durable they can last up to 400 years. They’re also fire resistant, incapable of rotting and heavy (meaning they can withstand high winds).
So why doesn’t everyone have a slate roof? It comes down to price. For one thing, there’s the price of the slate tiles themselves, which can easily eclipse other tile-based roofing options. There’s also the fact that you need a strong structure to support the weight.
Want to give your home a sustainable twist? Consider a green roof – even if it’s just for a small part of the overall roof. Basically a roof covered in vegetation and installed over a waterproof membrane, these can provide useful insulation and regulate the temperature inside the home during summer. They also look great.
Roof types and shapes
Moving on, it’s time to assess the various roof forms you’re likely to come across. Again, we’re talking about roof styles in New Zealand.