It is said that if you go outside in the rain, no hat on his head is wet! a rather simple, it is not ... but you know what? It 's simple, it's true.
As a hat for the head of a chimney crown is a cap for the chimney. The chimney crown is designed to help rainwater from the top of the fireplace, which keeps them in the shell fire, so the shells cast fireplace to dry. Let's take a look at the various types of masonryCrowns widely used today ... ok?
Cement wash - This is the most widely used today for the chimney crown. A cement grout is at the top of the chimney masonry and finished slopes to help run the trowel finish fireplace in water.
There are literally millions of crowns in this existence today, and they work very well at first. This crown is the simplest and cheapest to install, but rather to break the first and can not. Shelf life is typically 1-5Years.
Concrete Crown - the crown of the occupation of the site used to be concrete, in less than crowns cement wash, but often still visible. This crown is installed through the construction of a form on the top of the wall over the fireplace and filled with concrete. Sometimes the steel can be added for longer life. It is also slightly tapered, throw water and normally extend about 1 "- 11 / 2" on the side of the wall to form a raised edge.
More expensive than the crown of concreteWash the items in situ concrete crown last long, depending on the quality of the concrete, design and installation. Shelf life is typically 20 to 30 years.
Cut Stone Crown - This is the permanent crown in the world today. A piece of local stone, cut limestone is usually designed and laid on the surface of the masonry chimney to act as a crown. All of the oldest brick chimneys in the world today cut the crowns of stone.
The stone is cut11 / 2 "- 4" thick, depending on structural conditions. The length and width of the fireplace and measured over a further 3 "- 4" is cut to allow a raised edge. Some get this massive stone rings, several thousands of pounds and may be a demand for cranes in the place.
However, if you do well in these beautiful pieces of decorative architectural statements. As you can imagine, the stone on top of the most expensive to build because of theskilled work is needed to measure and fabricate, and equipment needed for installation. However, they will last for hundreds of years.
The simple chimney crown can humble or great, depending on the whims and wishes of architects and builders, but no matter how they look, the function of the crown is the same. Like a hat keeps your head dry, with a crown of fire, the walls are not neglected in the fireplace and should be dry.
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