https://pediascape.science/wik....i/Using_uPVC_Cat_Fla
A popular choice for homeowners, a composite door cat flap provides an unsecure entry point for your pet. It also reduces the risk that unwanted critters will enter your home. To install an additional cat flap, you will need to be an expert and have a good knowledge of the composition of the composite door. Any structural modifications can compromise its strength and impact its thermal performance. Install a cat flap on a composite door A cat flap allows your pet to move around the house without letting in other cats or an