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The UPVC/PVCU material, which is resistant to UV rays and fire and is also eco-friendly. It also has a high insulation which reduces heating costs. It's a great choice for homes in areas that have extreme weather conditions. Fitting a cat door into a upvc is relatively easy. Just follow the instructions that are included in the kit you purchase. Benefits UPVC panels are flexible and can be installed in a variety of frames. They are also immune to UV radiation and fire. This makes them an excellent o