Missing mortar between your bricks or moisture in your attic area? Perhaps the faces on your brick appear to be flaking off. This is strictly a moisture problem. And can be remedied with the installation of a stainless steel raincap. You see without a raincap, your chimney is just like an open bucket. It takes in the total annual rainfall on the inside of your chimney, in turn your chimney becomes wet, then soaked and the freeze and thaw cycles begin doing extensive damage to your chimney. This can all be remedied with the installation of our raincaps. We can design a cap that covers the whole top area of the chimney or install one that covers just the flue. In addition all caps are equipped with a 3/4″ screen to prevent any animals, birds or leaves to enter the chimney.