A. The main points to think about with a door mat that is situated outdoors and is exposed to the elements is how well the mat will drain and dry. On our Outdoor Mats page we recommend a variety of different materials, however if you know that your mat will be situated in an area where it may not drain and dry well, then the best option would be to choose either a Synthetic or Rubber mat, as these do not perish.
Whilst we do not recommend natural Coir for outdoor use unless sheltered from the elements, if you are insistent on using natural Coir outdoors, we would recommend woven backed coir rather than PVC backed as it drains more effectively. If your natural Coir mat were to get completely wet, stand it up on its side to allow the water to drain away completely and the area which it was standing on to dry before placing it back, as per our Care and Fitting Guide which will be sent out with your order. With coir being a natural fibre, consistent exposure to excess moisture and weather is likely to shorten the effective lifespan of your doormat, compared to if it were kept indoors.
Take a look at our recommendations for outdoor matting:
Outdoor Man-Made Scraper
Hug Rug Outdoor Mat Range
All Weather Made to Measure Doormats
Half Moon Rubber Door Mat
Decorative Coir and Rubber Door Mat