Polycarbonate roofs are often the cheapest option when looking to replace your conservatory roof. In traditional polycarbonate roofs, the most common thickness used are 16mm, 25mm and 35mm. There are however, many drawbacks that come with a polycarbonate roof. The average lifespan is between 10 to 15 years.
One of the major issues with a polycarbonate roof is the lack of proper thermal insulation. Conservatories with this type of roof often get far too cold in the winter, and too hot in the summer. During bad weather conservatories also tend to get very noisy.
Although they can withstand heavy rainfall, they are often very difficult to maintain. The material scratches easily, can often suffer from discolouration and algae often grow within the roofing.
Polycarbonate sheets are also prone to suffering from leaks. Not only is this potentially damaging to your property, it can be difficult to fix.