Concrete Roof Tiling
The materials used for concrete roof tile are cement, sand and water, The precise materials can vary from manufacturer to manufacturer but generally they contain sand, Portland Cement, fly ash and blended hydraulic cements as well as other aggregates. Most manufactures products seem similar in color, shape and size. There are a few concrete tile manufacturers.
Based on their profiles concrete there are three main appearances that roof tile will have:
Flat Profile: This profile of concrete tile is flat, when viewed from its butt there are no curves.
Low Profile: This profile of concrete roofing tile when viewed from its butt features small curves whose rise to width ratio is 1.5 or under.
High Profile: This profile of concrete tile features curves which are larger, when viewed from the butt the rise to width ratio is over 1.5
There are various options when it comes to the textures and colors of concrete tile. The tile surface can be of a rough or smooth texture. For the most part they are color impregnated as opposed to merely slurry coated.
There is an option of either lightweight or standard weight tile. If at all possible it is best to steer clear of lightweight tile. Lightweight tile is a lot weaker and difficult to walk on without risking breakage, in comparison with standard concrete tile weight lightweight tile is a lot more prone to damage from hail or heavy snow.
There is a price difference between lightweight and standard weight tile, lightweight tile is more expensive. This money, in my opinion would be be best spent on consulting with a professional structural engineer and incest in the less expensive standard weight tile.
When passing on the concrete tile specifications make sure you include the manufacturer, the tile brand, type and color. EXAMPLE: Ace Cement, Mabe,Low Profile Tile, Brick Red . (These are made up names just to give an example.)
Marketed as a fifty year roof, that is the life expectancy of a concrete tile roof. However, even if quality material was used and correct installation procedures adhered to the underlayment and batten system will not last that long, they generally have to be replaced every thirty to forty years.
There are many times that tile roof underlayments and battens have to be changed even as soon as within the first five to eight years; inferior materials as well as improper installation procedures can be blamed for this. After a few years concrete tile can also lose some surface texture as well as color.
More than any other type of roofing product tile roofs are more prone to moisture penetration from snow or wind driven rain. This is why it is so important to have your batten system, underlayment and flashing properly installed, that is crucial to the lifespan of your roof tiles. The majority of concrete tile roofs have roof systems, which are only single ply in which asphalt shingles are two plies, wood shakes and shingles are two as well as three plies.
Snow, rain, dirt, leaves, insects such as bees and wasps, small birds and animals and their nests etc. can get in under a tile roof. A concrete tile roof is an excellent roof, however this is only true if the battens, underlayments and flashings are properly installed.
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