The quality of this product is mixed due to poor quality during manufacture. It is possibly suitable for areas of now strong winds or heavy rains. This is due to the supply of what can only be described as a Mecano set. Screws are poorly sized. In areas self tapping which after fitting later fixtures require tge removal and refitting of the self tapper which is now in an oversized hole due to the adding of further sheets. The sheet body is thiner than cardboard tea box. I do not expect this product to last tge winter and will unfortuatly need to use the manufacturer's warranty as the sold it to someone who lives in Scotland that's assuming it's still present in the backdoor.