http://brewwiki.win/wiki/Post:....Using_uPVC_Cat_Flap_
It's simpler than you think to put a cat flap in the solid uPVC panel or sealed double glazed unit. If you don't possess the right tools or no experience, you will require the help of an expert. This guide will teach you how to mark the measurement, cut and mark the cat flap on the uPVC panel. Also, how to make it draft and weather resistant. Safety A upvc panel that has an enclosed flap for cats is a great option to ensure your pet's safety while allowing him or her to move around freely. These panels are made from recycled