Rain entry into redundant chimneys is one of the main causes of structural decay to chimney stacks. The decay, caused by the natural freeze/thaw cycle of the weather, can ultimately cause great expense. Water works its way into the mortar between the brickwork and as it freezes, expands, eventually leading to cracks in the brickwork.
This Chimney Cap offers a simple solution at a low price that prevents rain, bird and debris entry while still allowing nominal ventilation.
If you have a chimney that you are not using at all - otherwise known as redundant or dead - a Chimney Capper will save you a host of chimney problems in the future. By stopping virtually all rain entry, it will assist in prolonging the life of the chimney. By frustrating birds and squirrels who are looking for a new home, the chimney stays clean and sound with the nominal ventilation included in the design.
What sizes & options are available?
A Chimney Capper will fit onto a standard round chimney pot 150mm to 250 mm internal diameter (6" to 10").
Made from aluminium and available in natural (unpainted), or powder coated terracotta, buff or black.
How do I fit one?
Once up on the roof, it is the work of a few minutes to attach the Chimney Capper using the stainless steel strap provided.
How to choose a Chimney Cap or Chimney Cowl for your Chimney Pot
If you can accurately guess the size or width of the chimney pot from the floor you can order the right Cap or Cowl from Chimney Cowl Products. The good news is this is relatively easy once you know the rough size of a house brick and the thickness of the walls of a chimney pot.
Using either the naked eye or a set of binoculars get a 'side on' view of the chimney pot you wish to cap or fit a chimney cowl, then find a full sized brick nearest to the chosen pot as a reference, normally directly underneath.
Now imagine that the brick is placed on top of the chimney pot itself and make a mental note whether it would fit inside, hang over, or sit flush. It may sound silly but once you know that the width of an average UK house brick is 225mm ( 9" ) for imperial or 215 ( 8 and half " ) on a modern property, it provides a very accurate impromptu tape measure.
The other factor you may need is internal pot size, this can also be guessed quite accurately if you know the average thickness of a chimney pot is about 25mm ( 1" ) , simply factor this in and you can work out most chimney pot width's quite accurately.
If you have large decorative rolls on top of the pot, make an allowance for this by guessing, using a brick as your guide.
That's it, our range of Chimney Cowls and Caps are all available for immediate delivery.